When you have a phone or IPad in one hand and applause is required. You slap your lap or leg with your free hand to simulate applause. Lap Clap
I had my phone in my left hand so I slapped my lap with my right hand to applaud when Bill received his award. Lap claps come in handy.
by MontanaBill May 27, 2013
by Tsunami May 26, 2003