Cymru am byth 

It means Wales forever.

Dip shits

Me: Cymru am byth
Someone else: Fuck yeah!

Cymru am byth by Agentthot February 12, 2013

cymru am byth 

Long live Wales. There is no other definition, it is quite simple.....even if you are english.
Guess where I hail from?

Wales isn't going anywhere. Cymru am byth.

English (for want of a better word) person: what is cumree um beethe?
Proud Welsh person: Shut up you toffee-nosed, in-bred, silver spooned wankstain........And no, it isn't great that your mother is also your brother's wife and your sister's mother-in-law.

cymru am byth by Mwfanwy August 11, 2006

Cymru am Byth 

Literally translates as Long Live Wales in the Welsh language, a language that is of Gaelic origin and is virtually extinct in all but rural areas of Wales. Usually shouted after a victory in the sport of rugby, it is a phrase that shows patriotism and nationalism.

Brian: Hey, Wales won the Rugby!
Huw: I know mate, Cymru am Byth!
Brian: Speak english or nothing at all welshie! Also, you truly are all inbred and have contributed nothing to the world!
Huw: Cymru am Byth mate, Cymru am Byth!

Cymru am Byth by Steve 'Law Man' Jones March 23, 2008