grin

smile so sickly sweet it make onlookers through up on site, or passing meat heats punch the grinning idot!

look at the grin on that bloke he looks like hes just got a new girlfriend

by taity July 26, 2006

*grin*

An irritating, cringe-worthy substitute for a "smiling" emoticon. Used on internet message boards. Very often follows a very weak attempt at a joke.

The trees might bark at you, I suppose *grin*

by sooth July 12, 2005

GRIN

an acronym for the set of technologies: genetic, robotic, information & nanotech.

the convergence of theses technologies into a single technology.

investing in GRIN stocks is a sure thing right now.

our children will need access to grintech if they are to compete in a global economy.

GRIN technologies are the modern day 4-horseman of the Apocalypse.

by g.SPIN December 05, 2010

grin

when someones pants are not fully up and they bend over and thier bum crack "grins" at you

wow you seem happy today because your certainly grinning at me

by aidyaid87 October 25, 2009

grinning

The toothless look on the face of an old person.

Further used to reference anything old.

Grandma is really grinning today.

By the time this pizza arrives I'll be grinning

by donjon May 04, 2007

grin

Fellatio, oral sex, blow job

Dude did you hit that ? No I just caught some grin.

by jmo401 June 28, 2015

grin fuck

grin fuck (verb) - a sales technique in which the salesman smiles profusely while delivering bad news. Since 80% of human communication is based on body language alone, the simple deception of grin fucking is often enough to prevent the victim from fully conceptualizing the bad news until later, after they've already agreed to the deal.

Note: the best defense against grin fucking is to call attention to it by casually asking the salesman why they are smiling.

Salesman <while grin fucking the hell out of you> We had to order a part from overseas, so the invoice came in $500 over the original estimate.

You <after sipping your coffee>: Why are you smiling? That sounds like bad news to me.

Salesman <suddenly befuddled>: Oh... no reason. I guess I'm just in a good mood today.

You: Okay, well, since I never approved the additional costs, what discounts can you provide to bring us back closer to the original estimate?

by Ggggggaaaaaaaaaaaaaaaa September 13, 2011