bald mouse 

small but long penis ( tall thin basketball players )

sandy scream, bald mouse with one eye in bed! get him out! Oh sorry sweetheart...

bald mouse by itichie_nocanpo June 25, 2006

bald mouse 

a loser in highschool that doesnt have any pubes

gigi durbin

bald mouse by Anonymous September 13, 2003

bald-headed mouse 

penis

Robs bald-headed mouse is barely visible to the naked eye.

bald-headed mouse by Tedwise October 27, 2003

bald headed mouse on a trampoline 

stretching one's scrotum forward and shaking it up and down so that the tip of the penis bounces on it

hey stuart, did you ever see a bald headed mouse on a trampoline?

bald headed mouse on a trampoline by madfunfrank September 30, 2013

Pull a badmouse 

When an anarcho-capitalist suddenly converts to a far-left ideology, often anarcho-communism.

Anarcho-Capitalist; "Hey dude, will you join our capitalist discord server?"

Anarcho-Communist; "Sorry man, but I don't like capitalism anymore, I might go and pull a badmouse"
Anarcho-Capitalist; "TRAITOR REEEEEEEEEEEEEEEE HELICOPTER RIDE REEEEEEEEEEEEEEEEEE"

Pull a badmouse by Buzberry September 21, 2017

Ballmouse 

The adjective "Ballmouse" originated in Hull University halls of accomodation. During a LAN gaming session, a particular player would often be disadvantaged in the game by their use of a wireless ball mouse - (as opposed to a corded optical mouse)

During a game of Counter-Strike for example, a player may screw up their aim, miss, and get a pummeling from another player. One of the other players then yells "BALLMOUSE!" very loudly within earshot of the player that messed up - and raucous laughter ensues.

The word has since evolved such that it may be called out a someone being self-detrimentally stupid or proving their idiocy to themselves through their ill thought out actions.

Ballmouse by Nu 0wn3r5h1p April 18, 2005