Two of my favorites are:
Time to go to sweep.
Every time someone said "Get down!" they jumped up and started dancing.
Because it's two gross! (A gross is a measurement unit for "144". So 2 * 144 = 288. Or "two gross".)
We saw that same joke two days ago
Neverland Ranch.
Me: Showering is optional Her: HAHAHA, be serious. Me: Ok, no drug tests.