Calvinator 

Someone that is a complete bad ass. Or in other words, a BAMF.

If a Calvinator walked into a packed club, heads would be turned.

Calvinator by Nivlac Mruts February 5, 2008

Calvinball 

A game or activity where one player makes up the rules, can change the rules at any time, and doesn't have to tell you the rules (unless you break a rule, of course).

The Supreme Court Is Playing Constitutional Calvinball

Calvinball by JusticeCalvin June 29, 2022

Calvinist 

Someone that partakes in mischievous behavior like the character, Calvin from 𝘊𝘢𝘭𝘷𝘪𝘯 𝘢𝘯𝘥 𝘏𝘰𝘣𝘣𝘦𝘴.

Susie’s firstborn is acting like such a Calvinist!

Calvinist by Mr. Dick Shinary March 19, 2022

Calvinball 

game in which there is only one rule, that being "you cannot repeat any action."

"Baseball is so organized. We should go play Calvinball!"
"Nothing is less organized than Calvinball."

Calvinball by Lionél Dripps April 15, 2004

calvina 

The perfect definition for kindness and peace.

Calvina sums up all that I need in life.

calvina by Salangheo October 17, 2020

_CalvinMason 

has a small penis

Sara: _CalvinMason is such a loser, I’m breaking up with him

_CalvinMason by lorna yk June 15, 2020

calvinday 

To pretend to work by being on the telephone or typing on the computer.While manual labor is being performed to shy away and say there are important reports to be done.

"Hey Martin, it's another Calvinday, instead of breaking a sweat Calvin just screws around on the computer."

calvinday by Houligan November 10, 2006