Hollow Jack 

A hollow jack is a verb that describes when one masturbates out of boredom.

There's nothing good on TV, I'm just gonna go have a hollow jack and pass out.

Hollow Jack by BillGlintin March 15, 2023

hollowback 

A breakdancing move where the back is curved outward (creating a hollow space), while balancing either on the head or on the hands.

He had a nasty hollowback in his routine.

hollowback by Neon February 5, 2005

hollowback 

A hollowback is when someone doesn't have a backbone. Doesn't stand up for themself.

"Damn! You busted his balls! You ain't no hollowback girl."

hollowback by catphish February 13, 2007

Hollowback Girl

A term Gwen Stephanie uses to relate to the teenagers she hopes will purchase her crappy album.

Gwen Stephanie is hot, but please, stop creating music like Hollowback Girl....isn't that break dance move, not a term describing yelling into a voice modulation machine to crappy beats.

Hollowback Girl by pkpkpkpk June 10, 2005

hollowback 

a crunch but with your legs behind you and balancing off of the ground

a hollowback is hard as fuck

hollowback by blazed December 9, 2004

hollowback 

i rugby turn used for props thy are told 2 use a hollowback this is when ur back is arched inwards

don't forget your hollowbacks props

hollowback by jamie waters May 30, 2005