1. When playing the wooden dice and number game "Klackers," "Klack" is to score a zero in your round, which is the best score you can get. 2. "Klack" is onomatopoeia, the sound that the numbers in the Klacker game make when they are pulled down, thus "Klacking" against the wood.
by Lester Bongs October 27, 2018
Get the Klackmug. Get some help you klack
by Max_0123 December 4, 2022
Get the Klackmug.