overcoach 

a coach who is suspected in sexual relations with his students

Nick: Didn't you see Sue yesterday?
Jack:I heard she was fucked by our coach..
Nick: ohh.. another overcoach in our school ,ha?

overcoach by Vandermar December 16, 2018

Emo Overachiever 

Anyone who actually kills themselves rather than talk about it.

Did you hear about the guy who jumped off that building? He's an Emo Overachiever

Emo Overachiever by drummer79 November 4, 2008

overachiever 

Someone who is sooo much better than you that it pisses you off.

I hate that fucking overachiever!

overachiever by Blah August 8, 2003

Overcocking 

The unsuccessful version of Overclocking a PC.

Components end up totally fucked, cos they has been successfully Overcocked.

guy A: hey, wheres Rok at?

guy B: oh, he's busy Overcocking his PC.

guy A: don't you mean Overclocking?

guy B: nah, he's overcocking it cos he's proper fucked it all.

Overcocking by PC World Technician April 10, 2013

Overcrack 

Slang name given to the game Overwatch due to its addictive nature and fun gameplay.

Joe been addicted to Overcrack ever since it came out. I think the loser is level 213 now.

Overcrack by Irish Bear July 25, 2016

escalator overachiever 

Someone who feels they must treat an escalator as a staircase, bringing guilt to the rest of the parties on the escalator, unless they also do so.

Jane: "Why is that girl bounding up the escalator like it's a flight of stairs? She's making the rest of us look lazy for just standing here riding it!"
Jill: "She's a total escalator overachiever."

escalator overachiever by pseuzieq August 3, 2010

concrete overcoat 

Concrete overcoat is when someone annoys the wrong person and you bury them alive and pour concrete over them

Don't annoy me or you'll be in a concrete overcoat.

concrete overcoat by West Broadway albion January 21, 2018