英语 ⇄ 俄语 +

liquid courage 强调
一般	храбрость в бутылке (slang The decrease in timidity or inhibition that comes from imbibing alcoholic beverages. I'm planning on proposing to Mary tonight, but I think I need a little liquid courage first! thefreedictionary.com Alexander Demidov)
非正式的	храбрость во хмелю (wikipedia.org i say); пьяная удаль (wikipedia.org i say)