I've never seen the word "phat" before, had to look it up. It seems strange. Is it a common word?
Phat
Adjective. phat (comparative phatter, superlative phattest) (slang, originally African-American Vernacular) Excellent; cool; very good. synonyms ▲quotations ▼ Synonyms: cool, excellent, fab; see also Thesaurus:excellent. (slang) Sexy.