Sac up 

~verb~; using your testosterone flooded man jewels to take charge and become a leader, to become aggressive, or to be brave

Steve tells the team, which is plagued with a slumpish game at the bat, for it to sac up and hit the ball.

Sac up by Baron and Bondell June 13, 2004

Sac up 

~verb~ to gather all of ones bravety and ability to fight and to go after what you want.

John, seeing that steve was cryin in the corner, told steve to sac up and go ask the girl out again.

Sac up by Jacob S. April 3, 2005

all up on your sac 

in your business...nosey...

related to the phrase "get off my nuts"

man, he was all up on my sac about that shit.

all up on your sac by jase February 11, 2005

Try me up like a sac

Daring someone to step up to someone ( trying them up like a sac).

Daring someone to get in your face

Shyanne better quit runnining her mouth about me....try me up like a sac

Try me up like a sac by Trymeup April 18, 2018

Sacupuncture 

Sacupuncture is having acupuncture performed to ones nut sack to correct a bad vasectomy or other traumatic testicular event.

Bradley's vasectomy left him in pain 3 years after the procedure. After many follow up visits to the urologist, he found Sacupuncture to be the most helpful in relieving his scrotal pain.

Sacupuncture by biffriffkin February 18, 2011