Cardiff City football supporters will be able to cheer on their team during the key match at the Millennium Stadium on Sunday - in Welsh.
The fans will be able to chant in Welsh
The fans will be able to show their support at the club's Division Two promotion play-off final against Queens Park Rangers thanks to a match day dictionary.
It has been provided by the Welsh Language Board, and will be printed in the official match programme.
So Cardiff owner Sam Hammam's "barmy" army will be able to plead for a 'cic o'r smotyn' (penalty) - whilst shouting 'bob tro reff!' (every time, reff!) and hoping that the referee will respond to their shout of "bant ‚ fe!" (send 'im off).
Rhodri Williams, the chairman of the Welsh Language Board, said they hoped all the fans would try out a word or two.
"We wish Cardiff City the very best of luck on Sunday - and I hope that we will all be sending the club our 'llongyfarchiadau' (congratulations) after the game." he said.
"These are simple words to learn and, as far as the board is concerned, we would be happy for QPR's fans to use them as well.
I shall certainly be making my views know to the referee, in Welsh - and I would urge my fellow fans to do the same!
"At least they would leave Cardiff with a few Welsh words, if nothing else!"
Welcoming the dictionary, long term Cardiff City supporter Tim Hartley said it was a great idea.
"Cardiff City has many Welsh-speaking fans amongst its supporters, myself included.
"I shall certainly be making my views know to the referee, in Welsh - and I would urge my fellow fans to do the same!"
It comes after the fans found out on Thursday that they would not be able to sing the Welsh national anthem at the match.
Our ball - PÍl ni
Send 'im off - Bant ‚ fe
Penalty! - Cic o'r smotyn!
Offside! - Camsefyll!
Every time ref - Bob tro ref
Come on midfield - c'mon midffild
Free kick! - Cic gosb!
Corner - Cornel
Do the Ayatollah - Gwnewch yr Ayatollah
A furious row erupted when it emerged that God Save The Queen would be sung ahead of the club's Division Two promotion play-off final against Queens Park Rangers.
Bluebirds fans said they wanted the Welsh national anthem, Hen Wlad Fy Nhadau (Land Of My Fathers), to be played at one of their most high-profile matches.
It has now been decided that neither anthem will be performed.
The teams will be able to sing their own club songs instead.