adj. the digital equivalent of clumsy. Prone to the unintended consequences of ungainly or careless screen mashing.
"Whoa, I think I just sent all of my photos to all of my contacts in Snapchat!"
"That's what you call thumbsy."
"That's what you call thumbsy."
by tronglodyte March 6, 2017
Me and and the bros always thumbsy-bump at the end of a party. Last night me and kyle did a frontwards thumbsy-bump, our dicks touched but no homo.
by Thumbsy-bumper June 19, 2019
When you're fingering a girl and you "accidentally" put a finger in her butthole
Stacy: wtf?!
Dan: sorry I guess I'm a little clumsy thumbsy tonight
Stacy: wtf?!
Dan: sorry I guess I'm a little clumsy thumbsy tonight
by shelbers34 March 10, 2015