Green’s Dictionary of Slang

frig v.

[Lat. fricare, to rub; note 18C SE frication, rubbing, in sexual context masturbating a partner]

1. [early 16C+] to have sexual intercourse.

2. [late 16C+] to masturbate.

3. [mid-17C+] to masturbate another person.

4. [mid-18C+] to trifle or fool around (with), to waste time; thus frig about

5. [1920s–50s] to cheat.

6. [1920s+] a euph. for fuck v. (3); thus excl. frig it! frig you!

7. [1950s+] to perform lesbian sex, where the genitals are rubbed together.

In derivatives

friggish (adj.)

[1960s] sexy.

In compounds

frig-beard (n.) [SE beard; the image is of the adult, bearded male; but note beard n. (1)]

[17C–early 18C] a degenerate, a seducer.

frig-pig (n.)

[late 18C–19C] a fussy, trifling person.

In phrases

frig about (v.) (also frig around)

[1910s+] to trifle, to waste time, to fool around.

frig off (v.)

1. [20C+] to masturbate, oneself or another.

2. [1940s+] to leave, to go away.

frig up

see separate entries.

In exclamations

go frig yourself!

[1930s+] a general excl. of dismissal.