肛交

gāngjiāo
anal intercourse

CEDICT

to have anal sex

Wiktionary

用肛门进行性行为。

維基詞典

Examples

跟我男友肛交后，我们一般需要把自己洗乾淨。

After having anal sex with my boyfriend, we usually need to have a good wash.

Source: Tatoeba

Entry Composition

=1 肛 gāng used in 脱肛 tuōgāng
=1 肛 gāng (bound form) anus; rectum
2 交 jiāo
  1. to hand over; to deliver; to pay (money); to turn over
  2. to make friends
  3. (of lines) to intersect
  4. variant of 跤 jiāo