Place it at the start of a pet bath edit, right as the dog rolls over, then follow it with Chipmunk Laugh after the request lands before cutting to the wash itself.
About this sound
A squeaky cartoon pup voice pleads for a belly wash across ten seconds, chanting the misspelled phrase wash my bellay in a bright, bouncy and deliberately goofy way. The pampered-pet attitude makes the simple request feel adorable and absurd at once, and listeners smile because it sounds like a spoiled dog talking back while rolling over for bath time.