You stupid americans are all wrong. Bloke is simply a British slang term for 'man/guy', with perhaps slight connotations of masculinity, and used only in an informal setting. Unlike 'guy' it is not normally used vocatively, as in 'hey you blokes'.
'I met this bloke in town who told me to stop wasting my time on the internet...'
1. Lashings of: a large amount of, used mainly to refer to things like cream, custard etc.
2. Lash: to strike with a whip
3. Lash together: to bind together with ropes etc
4. To get lashed: this is simply to get very drunk/pissed inebriated/sloshed/hammered/legless/rat-arsed /etc. Lash can also be used as a noun meaning alcohol.
As in: 'Hey, do you fancy going out and getting lashed tonight?'
As in: 'Hey, do you fancy going out on the lash tonight?'