Me and my friends use the work geekin out when someone is way too high and paranoid and is freaking out, making other people sketch. It lets us know someone was really high without the annoying "I was sooo high and...".
"Joe saw a ski rack on a car and thought it was a cops. He wouldn't stop geekin out." or
" Some one yelled "cops" so I started geekin out and ran from the party"
I can see where these terms get annoying when everyone gets a hold of them and they are just forced into sentences.
Plus you can't really argue if a terms are cool because all are relevant to friend groups and are usually backed by inside jokes or specific meanings.