a simple card game.
a flapjack or griddlecake.
Origin of slapjack
Regional variation note
2. See pancake.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for slapjack
She called him her "slapjack" and would tell him to come and have his smack!
Perhaps some dainty fellow prefers the more imposing "slapjack."
Word Origin for slapjack
C19: from slap + jack 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012