When you stretch your asshole and shove it full of mentos, then pour in diet coke and stand with your ass in the air screaming I'm a fountain.
by dabatrin June 23, 2022

by Hamlet Lynn September 20, 2019

The result of an unsuccessful attempt to perform anal sex, whether male or female. The anus will be clean, reddish in color and concave from multiple attempts.
Brian told me he had a "dented starfish" thanks to Jacks relentless efforts on his 1st anal experience.
Ryan wants me so bad... He knows I'm a virgin back there but has problem giving me a "dented starfish" until it happens.
Ryan wants me so bad... He knows I'm a virgin back there but has problem giving me a "dented starfish" until it happens.
by Clifford "The Mayor" August 7, 2024

by coolpotatoe724 February 24, 2025

cumming into a dirty asshole
Did you hear that Frank took Sally on a date and he gave her a oreo starfish at the end of the night.
by nastynikk September 21, 2020

Wearing a Jock Strap or another garment that covers the genitals but leaves the anus (starfish) exposed.
by NakedFarmerUSMC April 18, 2024

by deimos227 February 20, 2024
