third base

giving/recieving head or eating a girl out.

michael + his lover got to third base.

by rooney-chick January 7, 2004

third nipple

A mole often directly between the two real nipples. Completely useless as a nipple.

Carlos has a third nipple!

by truecha January 20, 2006

dirty thirds

to be the third guy to have unprotected sex with a chick in a short period of time. High risk of STD's since there's 2 guys and the girl's juices floating about. worse than sloppy seconds,but better than floppy fourths

Joe likes messing with the cheap prostitutes that don't like condoms towards the end of the night and usually ends up with dirty thirds.

by Bobert Mcbobert June 25, 2006

Third Trimester

You have eaten too much, also known as a food baby, causing a distended belly.

After Thanksgiving, I ate too much and was in my Third Trimester, I had to roll out the door.

You don't look so good, are you in your Third Trimester after snacks at CC's?

by 91 Riv November 30, 2011

third base

Getting to third base is the most ambiguous stage of high-school heterosexual interaction. The definition really depends on how far the boy goes: is it an intermediate stage followed by going all the way, or is it the final stage of making out? (everything that follows is from the boy's perspective) When I was a kid (mid-70s) it meant groping skin-to-skin instead of through the clothes. Today it's gone farther: "getting to third" implies that you eventually squirted; "I got as far as third" means that you didn't do it inside her (hand job, blow job, dry-hump, just lose it while making out, etc.). If you go all the way, it doesn't really matter when you got to third.

"How far did you go?"
"Third base, dude! She wouldn't drop her panties, but we kept at it until I spooged my boxers."

by e-boy February 19, 2007

Third Wheel

That one person that does not belong

No matter which way you figure it, if you're in a group of usually 3 people, theres always a third wheel:
2 Guys & 1 Girl = Usually 1 too many guys

2 Gay Guys & 1 Girl = Should never happen EVER

2 Girls & 1 Guy = 99% chance theres 1 too many guys, BUT THERES STILL A 1% chance of this turning into the best night of his life!

by Austindemolish March 22, 2011

Third Hat

Having lots of background experience in a particular subject. Usually a term abused by ignorant and cocky fucktards.

As faggot ass Moy says:

"You gotta know your networking, how to hump a telephone pole, and feed a fish to a walrus... All I'm saying is that you have to wear your Third Hat... and I know you kids these days just don't have it."

"My son is a straight-A student in Notre Dame, he really flashes his third hat man."

"I think my cock is big because I'm wearing my Third Hat."

"Moy is a faggot."

by Negger March 5, 2004