by iiiCassh November 24, 2018

When you stealthily sneak-into your girlfriend's home after her kids have gone to sleep, so you can get some.
by Ojete April 27, 2014

You know that guy I took home hes was swift he was like a minge ninja in and out before I knew it....premature
by Chop81 April 3, 2021

When somebody as an above average or otherwise huge penis when erect but shrinks to near disappearance when flaccid, or in other words vanishes like a ninja.
Example: That mother fucker has a ninja dick.
Example 2: I got ninja dick. that shit maybe 1 or 2 inches long till I get a hard on but then that shit massive.
Example 2: I got ninja dick. that shit maybe 1 or 2 inches long till I get a hard on but then that shit massive.
by Pickle Reeves May 3, 2023

by djsmakywas March 9, 2012

A mass of swelling from the top of the ankle and up to the knee that doesn't stop you from walking or jogging..
by 12speed June 15, 2023

by Flanner June 4, 2018
