1) (common)To clap 2 chalk board erasers together to
clean them and create a cloud of chalk
dust, often fun when students are board.
2) (slang) To clap dem cheeks of the class
slut.
1) Hey
Tom! Go outside the class and clap the erasers!
2) Damn
Tom, you really clap the eraser! Dude shes a
hoe anyways.