1. (US) one who believes themselves to be far more sophisticated than is the reality.
2. (US gay) a homosexual sailor who only takes the passive role in fellatio.
3. (US campus/gay) an attractive man; thus hot tuna! an excl. said on seeing a sexy man.
1. (US campus/black) a girlfriend, a woman.
2. (orig. US black) the vagina, both positive and negative.
SE in slang uses
[1990s+] a woman’s genitals; esp. in the context of cunnilingus.
[1970s+] (US) an old, decrepit car.