butterbutt

English

A butterbutt (Setophaga coronata)

Alternative forms

• butter butt, butter-butt

Etymology

From butter +‎ butt.

Noun

butterbutt (plural butterbutts)

1. (colloquial) The yellow-rumped warbler (Setophaga coronata), a North American bird species with a conspicuous yellow rump.
2. (Australia, colloquial) The yellow-rumped thornbill (Acanthiza chrysorrhoa), an Australian bird species with a conspicuous yellow rump.