Slang frequently used by 'chavs' ostensibly to mean homosexual. Based on the word 'batty' with the same meaning. However the word usually does not actually refer to the person in question actually being gay, more that they are annoying.
Severe intoxication through alcohol consumption. Typically characterised by a total lack of inhibition often demonstrated through particularly foolish dancing. One step above steaming on the scale of drunkenness and one below shell.