I. ˈhwät-ˌnät, ˈwät-, ˈ(h)wət- pronoun
Etymology: what not?
Date: 1540
: any of various other things that might also be mentioned
paper clips, pins, and whatnot
II. noun
Date: 1602
1. : a nondescript person or thing
2. : a light open set of shelves for bric-a-brac