A penisburrito is a rare magical item. Oftentimes rainbow colored, it is the main staple of Sasuke, the purtiest girl in the world. This is the best definition that can be given as a penisburrito is simply too glorious to define in words.
(1) "Hey, what're we havin' for dinner Momma?" "RAINBOW PENISBURRITOS!!!" "Waahoooo!! RAINBOW PENISBURRITOS!! Lemme go get Sause -su-gay Momma!"