Top Definition
Posh Acronym : 'One Laughed So Hard A Bit Of Wee Came Out' ... Chavs and lazy gits usually use 'PMSL'
'Oh, how we laughed, so we did' ...
'Yes, 'twas indeed hillarious'...
'In fact, so amusing was said incident that OLSHABOWCO !'
by Daddy-'68 November 24, 2011
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