Definition of Brahms and Liszt in English:
adjective[predicative] British informal
- During the weekend in the capital Tallinn, while getting totally Brahms and Liszt on a crawl of the bars, he bumped into (perhaps not surprising given his inebriated state) the president of the Estonian Rugby Federation.
- How the heck would I know, I'm completely Brahms and Liszt.
1930s: rhyming slang for 'pissed'.