pederasty

noun

ped·​er·​as·​ty ˈped-ə-ˌras-tē 

variants or chiefly British paederasty

ˈpēd- 

plural pederasties

: anal intercourse especially with a boy as the passive partner

pederastic

ˌped-ə-ˈras-tik 

adjective

or chiefly British paederastic

ˌpēd-