Gusner - verb - to have sex with Claire's mom. Often associated with Haitians and the Kama Sutra. See also Claire's Mom's review of the Kama Sutra.
"Dude, I gusnered last night."
"Are you haitian?"
"I've got my green card baby"
To have gruesome, hardcore Haitian sex and then write about it on the internet.
"Yo, dude, I gusnered all night last night."
"Man, I know! I read about it when I googled your name!"