1 definition by Fezzant
As others have said, used when drinking and when driving cars fast, but heavily used by motorcyclists (due to Northern Ireland having a massive motorbike culture in the 70's 80's and 90's). Keep 'er rubber side down, Keep 'er between the hedges and Keep 'er on the pipe are all other terms that spawned from Keep 'er lit in that community.
by Fezzant December 14, 2018