Trumbsy 

When you are causing trouble being a ditz and acting like a knuckle head at the same time
usualy reserved for boys around 14 or 15 years old

That kid is such a Trumbsy

Trumbsy by looooooooolllllooooo May 10, 2019

MC Trumby

A MC Trumby is a pro fortnite gamer, who always rages when he gets insulted

Woah, is he a MC Trumby

MC Trumby by . -. April 15, 2020

thumbsyncing 

Coined by Tom Merritt during TWiT Live (live.twit.tv)'s syndication of G4's Microsoft E3 2010 media briefing.

The video game equivalent of lipsyncing. Typically occurs at major events such as E3, where a game is being demonstrated on-stage. Since it'd be pretty boring to just watch gameplay at E3 (almost as boring as having Britney Spears actually sing at a concert), they put someone on stage to pretend to play.

Raises the stupid level by tenfold.

E3 Audience Member #1: That guy is totally thumbsyncing.
E3 Audience Member #2: Yeah, it's so obviously that guy isn't actually playing. He isn't even moving his thumbs!
Kotaku Writer: OMGZZ GREATEST GAME EVERZZ1!!11!ONE

thumbsyncing by Beatlesfan94 June 16, 2010

thumbsy

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."

thumbsy by tronglodyte March 6, 2017

trumby

Dead shits, completely stupid, as dumb as bricks.

Oh my god, look at that person. They are a complete trumby!

trumby by trumby101 April 2, 2011

Thumbsy-Bump 

When you and a bro each stick their thumb up their ass and bump knuckles while turned backwards

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.

Thumbsy-Bump by Thumbsy-bumper June 19, 2019

Clumsy thumbsy 

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

Clumsy thumbsy by shelbers34 March 9, 2015