敲小背

to be masturbated by a prostitute

to hit / to strike / to tap / to rap / to knock / to rip sb off / to overcharge

small / tiny / few / young

variant of 背[bei1]

to be burdened / to carry on the back or shoulder

the back of a body or object / to turn one's back / to hide something from / to learn by heart / to recite from memory / unlucky (slang) / hard of hearing