last night's dinner 

The act of licking another person's anus.

Tyler: Hey, is that chocolate on your mouth? I told you not to eat that Hershey bar.

Jim: No, man. I forgot to clean my mouth after eating last night's dinner.

last night's dinner by Surveyor of Gross September 5, 2013

Eating last night's parmo 

A feeling of familiarity, of nostalgia almost, tinged with regret and the promise of regret to come.

I wish my ex hadn't moved back here. Every time I see them it's like eating last night's parmo.

Eating last night's parmo by Eidorb Norton the Unseemly May 29, 2024

that's what you said last night 

Alternative of 'that's what she said' Turning something normal someone has said, to being sexual.

Girl: *spits out food* Your sausage tastes too salty!
Boy: That's what you said last night..

that's what you said last night by Ojm123 October 7, 2011

That's not what your mom said last night 

Just about. The greatest comeback to anything. Used mainly when talking about the size of genitals, but can apply to anything else.

Person A - Hey look at our science. That's bigger than yours!
Person B - That's not what your mom said last night!
Person C - Oh BURN.

That's not what your mom said last night by More Awesome Than Thou November 13, 2005

That's Not What Your Mom Said in Bed Last Night 

A comeback that people say when someone says, " I bet you are terrible at sex." Or other comebacks. Then that person would come back and say, " That's not what your Mom said in bed last night."

Guy #1: Your dick is probably the size of half of a raisin.
Guy#2: That's not what your Mom said in bed last night.

That's Not What Your Mom Said in Bed Last Night by jazmine1 April 19, 2018

that's the sound your mother made last night 

originated from SNL when sean connery said it to trebek. can be used to any sound that could be sexual.

Trebek: What sound do dogs make?
Sean Connery: Moo
Trebek: No.
Sean Connery: But that's the sound your mother made last night!

that's the sound your mother made last night by trebeeeeek May 23, 2009

That's What Your Mum Said Last Night 

The absolute ultimate comeback. Can be used in any situation, with a maximum final effect.

Sam: "you are a cockbite"
Alistair: "yeah, that's what your mum said last night!"
*sam slaps alistair*

That's What Your Mum Said Last Night by Static November 10, 2003