When your fucking a girl doogie style and stick a potato up her ass
I was fuckin this girl last night and decided to give her the old irish mailbox
by steavis666 February 08, 2011
1 more definition
The act of shoving a Potato in a woman's mouth, to muffle the noise, while she is being butt fucked.
"I hooked up with a hot Woman last night, and gave her an Irish Mailbox".
by Dirty Eyeball November 02, 2010