Son of a Bitch - 王八蛋 = king - eight - egg
Bastard - 龟儿子 = turtle - son
To piss - 撒尿 = sprinkle/‘to let go’ - urine
Loser - 屌丝 - penis - silk (silk penis)
To Fuck - 入肉 = enter - meat
Cunt/vagina - 屄 = this character is made of 'corpse' 尸 & 'cave' 穴 . One of the worse words in Chinese. Many of them don't even know it.
Homosexual/Gay - 同性恋 = same - nature - ‘to long for’
Hickey - 吻痕 = kiss - scar/mark
唇印 = lip - mark/trace
Condom - 安全套 = safety - cover/sheath
Masturbate - 打飞机 = to hit - airplane
Bastard - 兔崽子 = rabbit - child
Porno Film - 毛片 = hair - piece/flake
Threesome - 三P = three - P
Slut - 破鞋 = worn out - shoes
Getting ones period - 来潮 = come/to arrive - tide/current
Clit - 阴蒂 = genitalia - stem
Awesome! - 牛逼 = cow - cunt
Awesome! - 牛牛牛 = cow - cow -cow (sounds like the number 6, so they say 666 for short)
Pubic hair - 阴毛 = genitalia - hair
耻毛 = shame/disgrace - hair
毳毛 = crisp/brittle - hair
Necrophilia - 恋尸癖 = to long for/to love - corpse - habit/craving
BJ - 哈棒 = (slang) to be infatuated with/to adore - stick/club
口交 = mouth - to deliver
Mistress or prostitute - 野草 = (of plants) wild/uncultivated - grass
N Word (person) - 黑鬼 = black - devil (derogatory duh)
Visit a hooker - 宿娼 = to lodge for the night - prostitute
Erection - 勃起 = suddenly/abruptly - to rise/to get up
Morning wood - 早勃 = morning/early - suddenly/abruptly
Dildo - 按摩棒 = massage - stick/club
*Orgasm - 高潮 = high - tide
Pedophile - 恋童癖者 = to long for/to love - child - habit/hobby/weakness for - 'the one who' (lit. the one with a weakness for loving children)
Sadism - 施虐癖 = to act/to carry out/to grant - oppressive/tyrannical - habit/hobby/weakness for
Transsexual - 易性癖 = to exchange/change - sex/gender/nature - habit/hobby/weakness for
Voyeurism - 窥阴癖 = to peep/pry into - genitalia/feminine - habit/hobby/weakness for
Red light district - 烟花巷 = tobacco/smoke - lustful/'to spend money or time' - lane/alley
Wet dream - 遗精 = involuntary discharge of urine etc... - sperm
Penis - 阳具 = male/masculine - equipment/tool/device
Peeping Tom - 偷窥狂 = stealthily/to steal - peep/spy on/watch - mad/crazy/insane