slap 4 [intransitive always + adverb/preposition] to hit a surface with a lot of force, making a loud sharp sound
Small waves slapped against the side of the boat.
Today, my son peed his shorts on my chair, then he slapped on / in the pee (not sure "on" or "in"), which made the pee be smeared all over my room & sometimes splashed it into my face (not sure "sometimes" is the right word:
"sometimes" is normally used for a longer period, eg, I sometimes go shopping. But in this specific situation, the period that my son did it lasted about 3 minutes and within that 3 minutes, sometimes (2 or 3 times) the pee splashed into my face).
Do you say "don't slap in the pee to make it be smeared all over the floor and splash it into my face"?