1. [mid-19C+] the head, the face.
2. [mid-19C+] a person, esp. a regular working man; thus, in sl. terms, a fool.
3. [late 19C+] (also chumpie, chumpkin) a fool; anyone gullible or easily taken in.
4. [late 19C+] (also old chump) a general term of address, either derog. or teasing.
5. [1970s] (US black) a second-rate pimp, one who just makes enough money to get by.
6. [1940s+] (US black) a disloyal gang member.
7. [1990s+] (US prison) a deliberate insult, implying the subject’s weakness and/or homosexuality; the spur to a fight.
see chump adj.
see separate entries.
[mid-19C-1900s] a fool, an idiot; thus chumpheaded adj.
[1930s+] (US) respectable, low-paying, regular work.
[1950s–60s] (US black) a punch on the arm or shoulder, its meaning varying according to context.
[1960s] (US black) to make a mistake, to blunder.
[mid-19C+] mad, eccentric.
[mid-19C–1910s] (UK Und.) to earn one’s living.
[20C+] to act intelligently.