A specific form of male masturbation where you slap your dick from side to side between each hand until the preg nog is released. (Technique usually hits its usage peak from around December 1st through December 7th.
Dan got so inspired while baking sensually enticing pancakes for breakfast on December 1st that he decided to Flap his JackJack before sitting down to a nice meal.
by DirtyDan8 November 14, 2019