To get (very) drunk
Also 'to go on the
lash'.
Synonymous with:
Get pissed, get wasted, get hammered, get rat-arsed, get sloshed, get trolleyed etc
The word '
lash' orinally means to strike with a
whip, and so has this extended meaning (ie. drinking makes you feel like you've been flogged).
NB. Usually used in a positive sense.
1. "
Hey John, what are you up to tonight? The boys are all going out and getting
lashed"
2. "The boys are all going out on the
lash tonight."