69
WordNet
adjective
(1) Being nine more than sixty
WiktionaryText
Noun
Etymology 2
From the of the numeral 69 – if rotated a half-turn (by 180°), the numeral remains the same, and a couple both giving oral sex at once have, in principle, a similar rotational symmetry.
Noun
- A sex position where two people give each other oral sex at the same time.
Coordinate terms
- cunnilingus
- fellatio
- clusterfuck
- Wikipedia article on Oral Sex