Squirty Penguin Poops
A more discreet way of indicating that you have diarrhea (especially if you refer to it by the acronym SPP).
Kid: I can't go to school today Mom... I've got squirty penguin poops.
Mother: You've got what?
Kid: You know... SPP.
Mother: Oh. OK. You can find the Pepto Bismol in the bathroom cabinet.
Mother: You've got what?
Kid: You know... SPP.
Mother: Oh. OK. You can find the Pepto Bismol in the bathroom cabinet.