S on a D 

can also be said as SONAD one word - it is to suck on a dick.

Idea from the movie Forgetting Sarah Marshall - "You don't wanna stick your P in a V!" "No but I wanna B my L on somebodies T's."

I want S on a D!

S on a D by Level 7 August 10, 2009

S on a D 

The term a drunk girl uses when she wants to suck on your dick in a Taco Bell parking lot.

Drunk girl: "I want to S on a D!"

*sees you chilling in your car at Taco Bell*
Drunk girl: "Hey can I S on your D?"
You: "What's S on a D mean?"
Drunk girl: "Suck on your Dick!"

S on a D by sonadpod January 13, 2016

Snap Backing The (ThE) (tHe) (a) (An) (A) (an( Comma (comma) (&) (,) The Ol(L)d D(d)usty Ass-w(W)iped Trail (A (The-An) Postal Code 10457-2219 On The Topic Of Zipper's Code)... 

What I call homo-sapiens who are addicted to abscesses.

Person 1: Are you addicted to abscesses?
Person 2: Yes.
Person 1: Snap Backing The (ThE) (tHe) (a) (An) (A) (an( Comma (comma) (&) (,) The Ol(L)d D(d)usty Ass-w(W)iped Trail (A (The-An) Postal Code 10457-2219 On The Topic Of Zipper's Code)...

Snap Backing The (ThE) (tHe) (a) (An) (A) (an( Comma (comma) (&) (,) The Ol(L)d D(d)usty Ass-w(W)iped Trail (A (The-An) Postal Code 10457-2219 On The Topic Of Zipper's Code)... by LeSouffleDeVersailles January 25, 2025

tits on a dinosaur's skeleton

Useless, of no relevance in the modern world

George Bush is about as much use as tits on a dinosaur's skeleton

tits on a dinosaur's skeleton by Edna Sweetlove November 5, 2006

thicker than hair on a dog's back 

Dogs have so much hair that they have to shed it a couple of times a year.

Traffic in Atlanta is thicker than hair on a dog's back during rush hour.

thicker than hair on a dog's back by Deborah Lee June 11, 2006

G.O.N.A.D.S. 

G aming
O rdinators
N ational
A ssociation for
D eveloping
S ystems

As seen on the fictional Decline of Video Gaming flash video series. This acronym spells gonads.

"Hi! I'm from G.O.N.A.D.S."

G.O.N.A.D.S. by SpursEngine February 11, 2009

On a Donkey's Left Toe 

verb;
The toe of a donkey, preferably on the left side.

I swear on a donkey's left toe that Greta left her husband for Tom.

On a Donkey's Left Toe by urstinkyunclesam March 21, 2022