phatty- adjective; pronounced "fatty"
1. Something big, large, noteworthy or extreme, sometimes unusually so
2. Something "cool", "awesome", "great"
ex: I went to a phatty house party last weekend...they had like 15 kegs!!
ex: Those are some phatty sunglasses...seriously, they're so big that I can't even see your face...
ex: That is the phattest guitar ever. Can I buy it from you?