Probably in your kink DNI

CHUT - origin: eidos-montral game. definition: unknown, but possibly something like fuck or shit. Example: "Quill… Even with all these… Frickin' augmentations and chut knows what else… I just… I need to know that you'll take care of Groot for me."

D'AST - definition: unknown, but used similarly to damn. example: "It'll grow back, ya d'ast idiot. Quit whining." commonly used in other media.

FLARK // FLARKING - definition: a type of intergalactic facial parasite. the word is used similarly to fuck or fucking. in the eidos-montreal game, we also see rocket use the term flarkholes. commonly used in other media [except mcu].

FLARKNARD - definition: unclear, but potentially a variation on the FLARK expletive. i've seen this mostly referenced as a noun but @rael-rider i think also documents it in verb form. the eidos-montreal game also used a variation on this (if i'm remembering correctly): FLAKNARD. Example: "All the blue flaknards know how to do is arrest people trying to make a living and slap them with scutbugging fines."

FRUTACKING - definition: unknown. this word is most often used with the -ing suffix as an adjective/adverb as a common alternative to FLARK/FLARKING.

FUDSCUT - definition: unknown, but seems like a variation on SCUT. similar to shit. Example: "Fudscut! I knew I should've come down earlier."

GLARNACK - definition: unknown, but seems similar to shit.

GLONARDS - definition: unknown, but used similarly to ass(es), or possibly genitals, ie, gonads. example: "Gamora’s stunt back there saved our glonards […]"

GLORNDS - definition: unknown, but probably genitals. Example: "You missed me blow the glornds off that Knowhere gangster guy."

GRABSTACKING - definition: unknown, but used similarly to fucking or damn. Example: "Flarking amazing. Wanna start a grabstackin' museum?"

GRIZMOD - definition: unknown. an insult akin to calling someone a shitbag; a generally distasteful, unlikable person. Example: "[…] you end up with a bunch of power-hungry grizmods who want power so bad they’ll put up with your politics torture chamber to get it.”

GRUDSCUM - definition: unknown in-universe; however, "grud" is an earth-1218 slang term for vile, or vile person. Example: "Filthy grudscum! Badoon-faced scutplugs!"

KRUTACK // KRUTACKING - origin: origin: comics. definition: unknown but used similar to FRUTACK and FLARK/FLARKING; occasionally used as a noun. Example: "K’ythri H Flark in a krutack basket!" also commonly used in the 2015-2019 cartoon.

K'YTHRI H. FLARK - definition: similar to "Jesus H. Christ;" K'ythri is one of the two chief deities of the Shi'ar. See FLARK for the corresponding definition. Example: "K’ythri H Flark in a krutack basket!"

SCUT - similar to shit. Example: "That Terran scut you're always listening to? You ain't helping your case." We also see SCUT used in other terms, like "scutbustin'," "scutting," "scutholes," "scutplugs," "scutstain," "scutknuckles," "piece of scut," and "trail of skrat scut."

*I will often mix-and-match some of these words (using a comic-based word in an mcu-based fic, or an eidos-based word in a comic-based fic, etc). i also implement them in different commonly-known, earth-1218 contexts or common idioms, and use them to extrapolate new swears. for instance, here's some homebrew space-swears:

FOR SHARRA'S SAKE: Sharra is the Shi'ar companion-god to K'ythri

K'YTHRI'S GLORNDS: Common archaic Western curses refer to god's genitals so uhhhh self-explanatory

K'YTHRI'S THIRD NUT: see above. i also sometimes reference an elder of the universe or other in-universe famous-person instead of a god in this type of expletive; for instance, "ebony maw's left tit."