An insult for a girl who gets bounced around and played by a group of friends until boredom sets in.
Bro #1: Who you tryna smash tonight bro?
Bro #2: I was thinking Kelsie, but she kinda a hackysack.
Bro #1: Yeah, but you're the only one of the bros who hasn't pumped her.
"We gotta look for a hacky sack to bring back to the hotel while we're on Spring Break"
really big saggy ball(s), resembling that of a grandpas
"woah man! thats one hacky sack..."
me you karate chop someone in the scrotum, between the balls
"I totally hacky sacked Jim today, he cried so hard"
A phrase used to angrily and inappropriately reject someone's opinion.
You hate blahblahblah? Lick my ball sack.
A crab sack is when the meaty cock of a male crab goes inside the anus of a human female, this act of sexual crabercorse is why we have jesus
note: This takes some planning, a pair of nylon gym shorts, and willing ..or unaware partner to work. When a guy has been doing an athletic activity and has swamp-sack (foul smelling scrotum) he will close one leg opening tight and then he gets his significant other to blow air up his shorts only to have the air circulate and exit back out the same leg hole into her/his face.
I plopped down on the couch after finishing my run. I told "Jane" my nuts were hot so she decided to blow up my short to "cool them off" but I closed off the other leg and she got the "Sweaty-Sack BackDraft"
When you put your hand in the freezer and cup someone’s balls
I was with my girl last night and she gave me that frosty sack attack