A score of 45 in a game of darts, most usually 2 twentys and a 5. This phrase is usually uttered in distaste at a poor shot.

Originates from a 90's pop song.
What was your score my man? A Brimful of Asha.
by Flapjackandy December 1, 2009
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When the temperature reaches over 15° outside in the UK and the sun is shining, So you are allowed play the song Brimful of Asha (Norman Cook Remix), which we all know is the most summery song of all time.
“Hey you know it’s going to be 20° degrees and sunny outside!”

“No way, that’s Brimful Of Asha weather if you ask me, get the song on now!”
by Twistingmymelonman March 31, 2021
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