A wingnut, wing nut or butterfly nut is a type of nut with two large metal "wings", one on each side, so it can be easily tightened and loosened by hand without tools. A similar fastener with a male thread is known as a wing screw or a wing bolt.

What is a wing nut slang?

"Wingnut" (sometimes wing-nut) is a pejorative American political term referring to a person who holds extreme, and often irrational, political views.

What is a wing nut used for?

Wing nuts work like most other nuts: They are designed to hold two or more objects together when used in conjunction with a bolt. You can twist a wing nut onto the end of a bolt to prevent the connected objects from pulling away.