The use of lemon in this phrase is abbreviated from the cockney rhyming slang 'lemon tart'
lemon tart = smart
lemon tart = smart
Example 1
"Don't get lemon with me son, or I'll take you outside and cut you open"
Example 2
Dumb arse gooner hater ain't so lemon now!
"Don't get lemon with me son, or I'll take you outside and cut you open"
Example 2
Dumb arse gooner hater ain't so lemon now!
by apositivenuisance August 14, 2009
"Don't get lemon" - simply means 'don't get loud' in cockney slang. Usually used in london pubs when the bloke wearing the stone island jacket gets vexed with some mug at the bar.
by _FaRSightxc2_ August 07, 2006