Here are two definitions of weto according to slang.com:
1. weto (javascript:void(0)) (javascript:void(0))
weto means a mexican, latino, hispanic dude that looks like a white boy.
paul wall is a weto haha
its usually not a good thing when people call you a weto when you are
hispanic.
2. Weto (javascript:void(0)) (javascript:void(0))
A Spanish term for a man with naturally Blond hair.
Wetos are most common among Northern Europeans, more so than indigenous
inhabitants of Spain.
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