by D-A. January 30, 2012

What immature teenagers say as a comeback to everything, often accompanied by "in bed" or "last night"
Person 1: That was fun.
Person 2: Your mom was fun. In bed. Last night.
Person 1: That concert took, like, three hours!
Person 2: Your mom took, like, three hours. In bed. Last night.
Person 1: What's that supposed to mean?
Person 2: Your mom!
Person 1: Huh?
Person 2: Your mom was fun. In bed. Last night.
Person 1: That concert took, like, three hours!
Person 2: Your mom took, like, three hours. In bed. Last night.
Person 1: What's that supposed to mean?
Person 2: Your mom!
Person 1: Huh?
by Smyke April 19, 2010

by dkjghkfhgfgjkljgdjgdfkjgkfgjkj August 16, 2010

Sarcastic statement made by high school kids. Mixture of "your mom" "you're gay". Very rarely used seriously
by YaBoiJayCutlet January 7, 2016

by cloudlesspace August 27, 2011

by Occifer April 21, 2008

1. (v) vicious sex act performed by decimating a nasty chick's asshole prior to bringing your wrists up to your chest mimicking a tyrannosaurus, roaring at the full capacity of your lungs and stomping the shit out of your victim, violently demonstrating the hunter's superior might over the powerless prey.
<note: it is not required that this is done to someone's mother, any female can be dinosaur your momed>
2. (adj) used to describe the astounding engine protecting qualities of Mobil 1 Extended Performance motor oil.
<note: it is not required that this is done to someone's mother, any female can be dinosaur your momed>
2. (adj) used to describe the astounding engine protecting qualities of Mobil 1 Extended Performance motor oil.
1. Jamie is such a slut, I dinosaur your momed her last night and she called me back!
2. ....and then there's this dinosaur your mom kind that goes for 15,000 miles!
2. ....and then there's this dinosaur your mom kind that goes for 15,000 miles!
by squirrel March 18, 2005
