Someone, mainly females who stick around in an emotionally abusive relationship with a compulsive cheater. Due to the cheater keeping and treating their mate as their pet the mouse stays regardless because it's the only love she receives. Even though deep down they know that love for them is superficial or even fake they convince theirselves that it's real. They deal with the partners cheating manipulative ways just like a good loyal little pet.
Who cares, your girlfriend is a mouse. Therefore you can literally do whatever you want knowing she will never leave you. You can probably bang another girl in the next room and she wil turn away and possibly cry but she won't do nothing about it cuz she's a mouse, you got her pinned down so she ain't going nowhere
by BlowMuthaFukkinPop March 29, 2023
Get the Mousemug. by Mtendo February 3, 2022
Get the Mousedmug. by OTHER FRIENDS UWU September 15, 2022
Get the Meeska Mooska Mickey Mousemug. 
The phrase used by an adult who just "farted" to convince a young child that the flatulence they just heard didn't really come from said adult.
Uncle Eddie: "PPPPFFFFFTTTTT"!!
Niece Lilly: "Uncle Eddie!!"
Uncle Eddie: "That wasn't me honey, that was a mouse on a moped!"
Niece Lilly: "Uncle Eddie!!"
Uncle Eddie: "That wasn't me honey, that was a mouse on a moped!"
by Laika 2 April 29, 2015
Get the Mouse on a Mopedmug. A frozen mouse in a glass of milk, drank on the side with scotch and tomato juice, jeffery dahmer’s specialty cocktail.
Darwin was sick from the mouse back, but he knew he had to finish it, for it was dahmer’s favorite, for the homies he said. And then passed away.
by Ebutta December 2, 2022
Get the Mouse backmug. ew a mouse
by ExpiredWater March 6, 2023
Get the Mousemug.