A state of being exceedingly intoxicated through the consumption of hideous amounts of alcohol. Derives from the predictive text system used by mobile phones which has 'ripped' as the second (borno) word to appear when one enters the number combination 747733, meaning to enter 'pissed'. When out on the lash this word invariably ends up as 'ripped' because either the phone user cannot see the phone screen through the alcoholic fug or even sees three (borno) phones. Consequently, 'on the ripper' describes the intention to consume, or the physical act of consuming, extreme amounts of fermented liquids prior to the 'ripped up' state. Hence, 'The Yorkshire ripper', 'Sutcliffed', 'Jack the ripper', can all be used as synonyms.
Can be used as either a noun or a verb. As a noun, chimp describes someone who departs from a public house or club early to return to one's domicile. This could be for a variety of reasons: too ripped up to continue drinking, being ejected by bouncers (a corollary of being ripped) or being under the thumb. The verbal form is used to describe this act of baling out early: thus 'to chimp out'.
The Dwix chimped out again last night. He is such a chimp.