Some terms I love (+the meaning for not mother tonguelers like me):
to defenestrate- means “to throw someone out of the window (I love it cause, WHY THE HELL DO YOU HAVE A WORD FOR THAT?!?!)
Approximately- means sth like “circa/nearly” (simply love it because it sounds awesome)
to procrastinate- means the progress of keep of avoiding to do sth, even though you know it’s going to have bad outcomes/disadvantages (love it cause I do that all the time)
to be puzzled- synonym to “to be confused” (simply sounds awesome and I once had a funny and I once had a funny misunderstanding with it)
kerfuffle- sth like “we are in a kerfuffle” = “we’re in a problematic situation” but in ironic (I still don’t know myself, how it used or what it means to be exact, but it sounds great)
Gigglemug- sb who’s always smiling (it sound adorable)
To glomp sb- to hug someone with much energy, mostly whilst running towards them, it also sometimes happens that you fall over
(And please bear with my English and explanations, not my strength)