Hardtack 

Biscuit composed only of flour, water, and salt. Can be light, flaky, and edible, or cooked so long, that it becomes hard enough that it cannot be broken with hammers, cars, etc. Used in al armies and navies until the late 19th century, especially in the Civil War, and in Navies.

We recieved our ten days rations of biscuits today.

Hardtack by Yankee1861 March 17, 2003

Hardtack 

Defecation that feels so utterly painful coming out, that it literally feels like you're shitting out a brick of hardtack.

Trevor: Hey man, I had a hardtack last night.
Matt: Dude, that sounds painful!

Hardtack by ClickyPond March 17, 2017

hardtack 

A mixture of water and grains used by pirates back then lmao that shit was like brick cracker

"yo nigga gimmie sum hardtack"
"ight here "
"a h shit its harder dana bitch"

hardtack by gx10000 July 28, 2019

hardback 

derogatory term for a member of the Crips street gang aka a ckrab

fuck dat hardback nigga

hardback by jimmyjump55555 March 27, 2008

Hardtaker

a slut who takes her boyfriends long dick, not only is this hard to take; the boyfriend is also a sex god. Only girls with stamina and strength can handle this, hence being a 'hardtaker'.

That girl is taking that dick well, dam she's a hardtaker

Hardtaker by boobyking January 1, 2012

hardstacking 

A difficult, yet rewarding maneuver where a minimum of three females lay on top of each other, legs spread, while a male penetrates one, then continues to move up and back down penetrating all one after another.
Requires good knee strength for males.

Bob was hardstacking the shit out of Becky, Lacie, and Shasta the other night.
Bob was hardstacking for so long he had to ice his knees.

hardstacking by Psnatch April 29, 2006

hardback garyman 

someone who is a massive fan of gary barlow

grooverider; he is a hardback garyman as he enjoys his music

hardback garyman by dwebb100 February 27, 2009