How to swear, insult, cuss and curse in Welsh (Cymraeg)

Welsh Swearing (Cymraeg)	English Translation
Cachau bant	Fuck Off
Hoyw	Fag, gay
Cach	Shit
Pidyn	Penis, dick, cock
Ffwl	Fool
Yn fytyn	Fool
Cau dy ben a stedd ar hwn	Shut your face and sit on this
Cnuchu fy fam	Fuck your mother
Cer adra'r cont o sais hyll!	Go home, you ugly cunt!
Twll Din Pop Saes!	Arseholes to all Englishmen!
Cadwch Cymru yn lan. Danfonwch y sbwriel i Loegr!	Keep Wales Tidy. Leave Your Rubbish in England!
Pen pidyn	Dickhead
Wyneb cach	Shit face
Mwnci	Monkey
Ast	Bitch
Ci	Dog
Ffwcia oma	Fuck Off
Gotsan drewllyd	Smelly fanny
Haliwr	Wanker
Dos i chwarae efo dy nain	Go fuck your granny
Ti'n llawn cachu	You're full of shit
Cont	Cunt
Malu cachu	Bullshit
Twllt din	Asshole
Rhyw	Sex
Hwran	Whore
Bronnau fel bryniau Eryri	Tits like the mountains of Snowdon
Cau Dy wyneb a Ffwcio dy ewyrth!	Shut your fucking face, uncle fucker
Mae dy fam yn llyfu cociau mul	Your mother licks donkey dicks
Cont Tew	Fat cunt
Cau dy ffwcin ceg	Shut your fucking mouth
Uffar gwirion	Silly bastard
Pisho bant	Piss off
Paid a malu cachu	Don't bullshit
Twp slebog	Stupid slut
Slebog	Slut
Ffwcin slebog	Fucking slut
Coc oen	Lamb's cock or dickhead
Cont	Cunt
Dos i chwarae efo dy nain	Fuck off (lit. 'go play with your gran')
Mae dy fam ti yn ast salw	Your mum is an ugly bitch
Cer i sychu fy penol fi	Go and suck my ass
Bwyta fy gachu	Eat my shit
Mochyn brwnt	Dirty pig
Pen pigyn	Dick head
Sugno fy nhi'n i cachwr	Go and scratch your mothers fanny
Pigyn bach	Small dick
Hwch / Hwren	Whore
Paid a mallu cachau	Stop talking shit
Dos i ffwcio dy hun y cont	Go and fuck yourself, you cunt
Twll tin y gont hoyw	Up yours, you gay cunt!
Cer i grafu	Fuck off!
Dos i grafu	Get fucked ( lit. go scratch)
Paid a malu cachu y twpsyn fach drewllyd	Don't bullshit, you stupid smelly idiot!
Cer i grafu y haliwr mawr tew	Fuck off, you big fat wanker!
Rwyt ti'n esgys fach pathetic am dyn	You're a pathetic little excuse for a man
Twpsyn	Idiot
Pen cachi	Shithead
Twll tin Iar	Chicken's arse hole
Slwten	Slut
Dos i chwarae gyda'r traffig y'r ast hyll / cont hyll	Go and play with the traffic you ugly bitch / ugly cunt
Ma bys bach fi yn fwy na esgys ti am goc	My little finger is bigger than that little excuse that you call a cock
Cay dy geg, a dos i ffwcio dy gath i fyny'r pen ol	Shut your mouth and go fuck your cat up the arse
Mae gen ti cont mawr drewllyd a fronnau flewog	You have a big smelly cunt and hairy tits