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1.) nerdy or dorky. 2.) "hugely winning" (as in, "what a fucking winner"). 3.) a term used whenever the impulse to laugh is created (i.e. embarrassing situations).
it was really peeish when she detagged those unflattering pictures of herself.
peeish by shellack October 12, 2011
Related Words
A mix between childish and petty.
Leo was being rather pettish today

Kid; making lots of noise, and annoying his sister
Mum; stop being so dam pettish boy
pettish by john pye February 18, 2008

Petersheimming 

The art of taking an innocent piece of information and juicing it into a gossipy topic in order to instigate drama.
Natasha: I met my new neighbor yesterday, we talked for 5 minutes.
Roger: Oh that's interesting, so since you two are hanging out 24/7 does that mean you're getting married?
Natasha: Quit Petersheimming me!!!

Petersham 

A small town in central mass. that resides close to the quabbin reservoir. It's full of old people who stare at you. If you go here the only thing to do is take pictures of trees. I mean come one, who does that? Dont go to this town. Its lame.
paul-"hey bill wanna go to petersham?"
bill-"Why go now? the leaves aren't good yet."
Petersham by Colin melanson February 22, 2009

Petersheim 

A very perverted and gangsta man. He uses the term 'nigga' more times than can be counted, and he might turn out to be a lover of science who is trained in the science of lovers. Look out for Petersheim.
"Did you see that Petersheim go by?"
"Yeah, he stole my girl last week."
Petersheim by CandidLaughs May 11, 2013
A pet fetish..... dog..cat..horse..exotic cat..etc.
Girl 1: hey.... where is your boyfriend Joe Bob? I thought we could double date tonight....
Girl 2: his parents are out of town so he is home alone with the dog..... living out his petish fantasies without me.....
Girl 1: oh.... that makes sense now.... cuz I saw him at the grocery store and he must have had 3 or 4 containers of peanut butter....lol
Girl 2: OMG.... I'm so jealous!!!
Petish by LemmeF1ndOut January 30, 2022