1.(noun)After having doing a girl up the but you decide to piss in her ass resulting in an awesome gumanation.
2. (verb) too pee in a girl's butthole
2. (verb) too pee in a girl's butthole
Person A: Wow molly got a guamanation last night
Person B: Man i knew that girl looked like she could take a gaumanation!
Person B: Man i knew that girl looked like she could take a gaumanation!
by beanerman April 17, 2008