Skinny fuck boys typically aged 11-25 years of age that have a pencil neck. They tend to dress up like preppy douches and likely have floppy hair they constantly brush out of their face.

Good examples include Shawn Mendes, Why Don’t We, and Justin Bieber
Example 1:
Dude 1: My kid sister has a new bf.
Dude 2: Oh cool is he swole?
Dude1: Naw man he’s a scrawny donnie!
Example 2:
Basic Betty: I just saw this cute boy on Instagram; he’s such a scrawny donnie!
by 6BeersIn2ballsout March 2, 2020
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