305 (slang) Type: noun, slang Pronunciation: /three-oh-five/ Also spelled or known as: Three o five What does 305 mean? Miami, Florida area code. 305 Synonyms: MIA Example sentence: “Been a min since we visited the 305.” 305 in songs: “In the 305, bitches treat me like I’m Uncle Luke” – Travis Scott, SICKO MODE. “305, […]