sixty-nine

(siks′tē nīn′)

noun

Slang a sexual activity involving two individuals and consisting of simultaneous oral stimulation of the genitals: somewhat vulgar

often written 69

See sixty-nine in American Heritage Dictionary 4

noun
Vulgar Slang

Oral-genital sex between two people at the same time.

Origin:

Origin: From the resemblance of the figure 69 to the position assumed by the two people

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