baldwin, n. — Green’s Dictionary of Slang

baldwin n.

[the collective fame and attractiveness of the Baldwin brothers, all Hollywood actors, namely Alec Baldwin (b.1958), Daniel Baldwin (b.1960), William Baldwin (b.1963) and Stephen Baldwin (b.1966)]

(US campus) an attractive person.

1997–2000		Da Bomb 🌐 2: Baldwin: Good-looking person.
1997–2001		Online Sl. Dict. 🌐 Baldwin n 1. an attractive male. (‘He is such a Baldwin.’).
1997–2002		Hope College ‘Dict. of New Terms’ 🌐 baldwin n. A very handsome or attractive male. Used by teenage girls to talk about boys they think are cute. Developed from the Baldwin brothers: Alec, William, and Stephen, who are actors and notably attractive according to female audiences and the media.