Complains persistently in a whiny manner; third-person singular present tense of 'bellyache.'
From 'belly' and 'ache,' conjugated in the present tense. Standard English verb formation following modern usage of this slang term.
Even though 'bellyache' started as slang, it's now found in major dictionaries—slang that describes universal human behavior eventually becomes legitimate English!
Complete word intelligence in one call. Free tier — 50 lookups/day.