Peeworm
Penis. Usually used by a parent or caregiver when speaking to a male child under the age of 5. Not very common, and not listed in most collections of slang terms for genitalia. Probably a variant of 'pee pee' or 'pee wee'.
Alternate spellings: Pee-worm, pee worm.
"Did you wash your peeworm?"
by
Rbd41 February 05, 2020