In the West of Scotland this is used to describe anything which is very good as in That's a brammer new caur ye hiv. It is said to derive from the Hindu god Brahma, one of the most important of the gods and since it is of relatively recent origin it is possible.
BRAMMER
Meaning of BRAMMER in English
Scottish slang English vocabulary. Английский словарь шотландского сленга. 2012