To be tweaking off an upper, such as Molly, Coke, Adderall, etc.
“Bro this shit got me tweaking, my jaw locked as fuck”
“That shit got you Geeked my guy”
Uncontrollably laughing at the funniest thing you've ever heard;
AKA: weak, dead, etc.
bro that was hilarious, I'm geeked
Person 1: Bruh, last night Ben said some geek ass stuff.
Another example; Bruh I got geeked as fuck when the cop pulled up