(US, informal) A girl's sixteenth birthday, or sixteenth-birthday party and a related coming of age party. / (bingo) sixteen

The cardinal number immediately following sixty-three and preceding sixty-five.

The cardinal number immediately following sixty-eight and preceding seventy.

(sexuality) A sex position where two people give each other oral sex at the same time.

(slang) To have sex in the sixty-nine position: to engage in mutual oral sex.

The cardinal number immediately following sixty-seven and preceding sixty-nine.

The cardinal number immediately following sixty-six and preceding sixty-eight.

The cardinal number immediately following sixty-four and preceding sixty-six.

The cardinal number immediately following sixty and preceding sixty-two.

(US, New York, informal) A police officer's report detailing a crime reported by a civilian.