Phat is modern English slang for "very good". It is derived from African-American Vernacular English.
Historically it was an occasional alternative spelling for "fat" or "vat". It may also refer to:
Leisure activities Phat (card game), a variant of the game All-Fours Phat (comics), a fictional character in Marvel comics
People Phat Watts (born 1999), American football player Huỳnh Tấn Phát (1913–1989), South Vietnamese politician and revolutionary Lâm Văn Phát (1920–1998), Vietnamese army officer Phat Wilson (1895–1970), Canadian amateur ice hockey player Richard Temple-Nugent-Brydges-Chandos-Grenville, 1st Duke of Buckingham and Chandos (1776–1839), nicknamed Phat Duke
See also
Fat (disambiguation) Phat Farm, a designer clothing company