Slappityslapslap
A slappityslapslap is defined as what will happen if you do not get above a 90% on any test, quiz, or other such things. A friend of yours will slappityslapslap you if you do not get above a 90%. This is an incentive to pass your tests.
Ugh I failed the test now my friend is going to slappityslapslap me.