When a dude grabs his balls in each hand and stretches his scrotum up and out to the sides intending to replicate a bat stretching out its wings. The stretched out scrotum represents the wings and the head of the penis represents the head of the bat. Much like in nature, the bigger the wings the more impressive the Bat-Span! (Best results after a hot bath or hot-tubbing)
by SpicyBry January 26, 2022
Get the Bat-Spanmug. 
Get the City Batmug. A big ass flying insect also known as a mosquito hawk but in Texas they're like 16 foot long and carry small children around.
Did you see that big ass wang bat just fly by damn you're not be down and grab those Charlie's little son.
by Gt420tx July 29, 2018
Get the Wang batmug. A "Bat Choke" is where the man is having really good masturbation session and decides to twist and squeeze his penis as hard as he possibly can. Once this sexual act is finished he will become addicted to this act and continue to use this. After a while usually he will do this at least 5 times a day to calm his anger against his penis, and then the man will be named a "Bat Choker".
by 50YearOldVirgin96 August 17, 2016
Get the Bat Chokemug. 
Johnny was being a brat in school, so his teacher gave him a case of bat ass with her ass bat paddle.
by Haldee March 19, 2017
Get the bat assmug. A female, on her period, tags another person by spreading her labia and laying them on a person's body leaving a bloody image of a red bat.
by Sloppytacollama June 29, 2019
Get the Crimson Batmug.