knock the trough 

A phrase first used by a young man called William from Central Queensland, Australia in an incident involving a dyslexic message on a get well soon card.

Originally spelt 'knok the troth'

Now in common usage as a colourful way of saying 'tap that' meaning attempt to have some semblance of sexual relations

Person 1: Look at her/him, s/he's hot!
Person 2: Would you knock the trough?
Person 1: Oh yeah!

knock the trough by The Original Teeny September 26, 2006

tipped the tuna 

Started peaking in popularity.

Oddly, this phrase itself tipped the tuna when used in reference to the socal networking service Twitter

A commonly cited source is this blog post by Ross Mayfield

"On Wednesday, Twitter tipped the tuna."

tipped the tuna by JamesGreen November 22, 2007

Tugging The Tiger 

Tugging your tiger is slang and refers to masturbation.

"Dude last night my mom caught me Tugging The Tiger"

Tugging The Tiger by bigbossman76 February 20, 2009

Get the thumb out of your vagina 

It's what you tell someone when they are acting whiny, bitchy, or are taking something way too serious.

"That's not even something to joke about..."

"Oh, get the thumb out of your vagina."

Get the thumb out of your vagina by Anonymous013 February 24, 2009

Completing the Triforce 

An uncommon nerd term for having sex since sometimes vaginal will precede oral therefore skipping one of four steps. This causes only three steps making a triforce analogy more appropriate than the original baseball comparison.

We made out, then I felt her up, but we skipped so we were Completing the Triforce.

Completing the Triforce by Zaxatak August 28, 2010

give the third ear

(verb) to have a polite conversation with someone who is trying very hard to socialize with you

when a person with asperger's syndrome tries to talk to you about his interests, you will most likely give the third ear

when a woman is afraid to be a bitch, she will give a guy the third ear

give the third ear by Vitaman J June 7, 2011

Doing the Tuna 

Slang for someone having a seizure.

Steve: "What is wrong with Jeff"

Jeff: Flopping around uncontrollably on the floor.

Bill: "Don't mind him, he's just doing the tuna."

Doing the Tuna by Otsego69 June 20, 2011