by Ojm123 October 7, 2011

Photos that were taken at a party, typically while drunk. Often involves red solo cups, making out & funny faces and outfits.
Jay: Why did you make out with my girl?!
Rob: I don’t remember that!
Jay: Dude, those were some photos from last night!
Rob: I don’t remember that!
Jay: Dude, those were some photos from last night!
by I Like To Define Words January 18, 2021

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.
Person B - That's not what your mom said last night!
Person C - Oh BURN.
by More Awesome Than Thou November 13, 2005

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!
Sean Connery: Moo
Trebek: No.
Sean Connery: But that's the sound your mother made last night!
by trebeeeeek May 23, 2009

by JormanThoad February 20, 2018

Sam: "you are a cockbite"
Alistair: "yeah, that's what your mum said last night!"
*sam slaps alistair*
Alistair: "yeah, that's what your mum said last night!"
*sam slaps alistair*
by Static November 10, 2003

similar to that's the sound your mother made last night. it also originated from SNL celebrity jeopardy. it was said by Sean Connery and is just another sexual innuendo.
Sean Connery: It's been a long time, Trebek.
Trebek: Not long enough.
Sean Connery: That's not what your mother said last night!
Trebek: Not long enough.
Sean Connery: That's not what your mother said last night!
by gorillaguy987 May 23, 2009
