Green’s Dictionary of Slang

tomato n.

[the luscious ripeness of the fruit]

1. [1920s–30s] (US) the buttocks, the posterior.

2. [1920s–30s] (US) a fool.

3. [1920s+] (orig. US) an attractive woman.

4. [1930s] (US) an attractive (effeminate) young man.

5. [1930s] (US Und.) a pimp.

6. [1930s] (US Und.) a prostitute.

7. [1930s] (US Und.) a stolen car.

8. [1930s+] (US) a woman.

9. (US) a fellow, a ‘guy’.

10. [1990s+] (US) the vagina.

11. (N.Z.) a NZ$100 bill.

In phrases

hot tomato (n.)

1. [1920s–30s] (US) a clever person.

2. [1950s] (US Und.) a passionate or tough woman.

ripe tomato (n.)

[1920s+] a woman who is ready for seduction or even marriage.

SE in slang uses

In compounds

tomato can (n.)

see separate entry.

tomato-picker (n.) [their employment as farm labourers]

[1960s–70s] (US) a derog. term for a Puerto Rican or Mexican.