when you are taking a poop in a public place and someone walks in and you dont want them to hear you in the stall taking a loud poop so you clinch your butt to be quiet
i was in the bathroom at micky d's the other day with mud butt and some guy came in the room i was really EmbarASSed
Taking the limp penis and pushing in back into you as far as it can go. Then you take the loose scrotum (best when out of a hot-tub or hot shower) and fold it from under, on to the top of your penis therefore resembling a turtle hiding in its shell.
The Embarassed Turtle, the Bat Wing, and the Brain are some of my favorite penis molding techniques during boredom.
Lost, bushed, disoriented, misplaced, all at sea, mispositioned
The officer took charge of the compass and the map, and via his officer training in navigation, soon the platoon geographically embarrased in the middle of the boonies.