The act of keeping an eye on the hedges and steps of shops etc on the way back from the pub/bar/nightclub, looking for girls so drunk that they have to take a "rest" on the way home.
Such ladies are often more amenable to a man's charms at this stage than they were earlier in the evening. The technique was developed on Occupation Road in Corby, England; where a number of comfortable hedges could shelter several drunk, half-dressed and freezing mingers? often delighted to share a taxi.
I have had no luck chatting up anyone in the Piano Bar tonight, so I am going to do some hedging on the way home.