To have bad complexion; to have a visage covered in pock marks or acne scars. Thus named for its similarity to the appearance of a sweet potato or yam.
Bill: Hey what are you up to today?
Bob: Another trip to the dermatologist. It's hard being a yam face.
by the mighty grouse June 21, 2011
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One who eats the forbidden fruit of a woman's undergarments
S: Hey Geoff how did it go last night with that bitch
G: It was alright; she blew me/I ate her
S: You Yam Face motherfucker!
by <===B February 4, 2009
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