Tuck and Run.
Term used for a coward running from a situation they are scared of. Liken to when a dog is scared and fleeing with it's tail tucked between it's legs.
When I got in his face, the pussy did a tuck and run.
Up Tuck and Run
The method you use to hide that random boner.
Give me a second, I need to up tuck and run to hide my hard on.
tuck n' run
When you are sitting in class and you get a random boner and the bell rings so you don't know what to do so you turn around so nobody can see and quickly tuck your boner up under your belt and pull your shirt down over it and run out of the classroom.
i had to tuck n' run last period haha.