sack bunch 

The uniquely male sensation of having one's scrotum squished into an uncomfortably small area or configuration due to unfortunate seating arrangements. The most common culprit is that poorly-placed knot in your blue jeans where all four denim panels get sewn together at Scro Central.

Causes include sitting quickly and carelessly in hot, humid weather when the twins are just a-danglin', shifting in car seats while seat-belted, any form of self-induced frontal wedgie (often from scooting forward on a cloth-upholstered seat), or a combination of the above.

In particularly blessed gents, sack bunch can result in sitting on one's own balls. Honorable and impressive as the feat sounds, the sensation makes one want to cry and puke simultaneously. Not recommended.

Lady Passenger: Why are you grabbing at yourself? Shouldn't you be concentrating on driving?

Male Driver: Gaah! I got sack bunch! If you just planted your ass on your own man-marbles, you'd be skittish too!

sack bunch by The Evil Steve August 28, 2005

Bench Sack 

(Masculine)

1: When you are spotting someone while they're bench pressing, and when they can't lift the bar, you try to help them lift it, but your center of gravity isn't very strong. Because of this, you center your pelvic floor above the other incapable person's head/face. The result is a face full of sack for the sweaty victim.

2: When someone is struggling to bench press and needs a spot, butinstead of a spot, you feed them your nut sack

-I was trying to hit a p.r. on bench the other day when I got bench sacked by my spotter!

Bench Sack by Big Saxy October 20, 2014

sackmuncher 

1:) One who munches sack; Basically a real asshole/faggot, or someone who is just plain detestable.

Today, Jimmy stole my books that I had borrowed from the library, what a sackmuncher!

sackmuncher by Talian August 1, 2007