Green’s Dictionary of Slang

creep v.

1. [mid-19C+] to forgo one’s pride and beg unashamedly, to curry favour, to be sycophantic towards.

2. [1910s+] to rob stealthily, to work as a sneak-thief; thus creeping n.

3. [1920s+] (US) of a prostitute, to distract one’s customer while an accomplice slips into the room and rifles through his wallet; since he always has to pay in advance, he won’t check his money until they have parted; also attrib.; thus creeping n.

4. [1920s+] (US black, also make a creep, pull a creep) to flirt, to make sexual advances, to have a clandestine meeting, usu. that between two adulterous lovers; thus creeping n.

5. [1920s+] (US black, also go on the creep) to sneak up on, to stalk someone with malicious intent.

6. [1930s] to ‘walk’, to escape punishment; to be let off.

7. [1960s+] (US prison) to escape.

8. [1980s+] (US black teen) to go about one’s business surreptitiously and quietly.

9. [1980s+] (US campus) to go out on the town.

10. [1990s+] (US black) to ride slowly in a car.

11. [1990s+] (US drugs) to sell marijuana.

12. (US campus) to follow someone by tracking them on social networks; thus n. creeper.

In compounds

creep house (n.) [house n.1 (1)/SE house]

[1910s–70s] (US) a brothel or unwholesome apartment house, esp. one where patrons are robbed.

creep joint (n.)

see separate entry.

creep pad (n.) [pad n.2 (2)]

[1940s] (US) a brothel or unwholesome apartment house, esp. where patrons are robbed.

In phrases

creeping and tilling (n.)

[1910s+] (US black) diverting a store cashier’s attention while a confederate opens and robs the till.

creeping man (n.)

( US Black) an adulterous or clandestine lover.

creep on (v.) (US black)

1. [1920s–40s] to cheat, esp. sexually.

2. [1970s+] to sneak up on someone, with the intention of attacking them physically or robbing them.

3. [1990s+] to follow.