What is Mom I gotta go pee?

This is a very common phrase used by children under the age of 8 who forgot to go pee before the 10 hour long roadtrip.

This phrase is used because before the roadtrip started, the mom asks, do you have to go pee timmy? timmy usually says no.

30 minutes into the roadtrip... MOM I GOTTA GO PEE.

thus angering the mom.