Pete Mandelson (as in Peter Mandelson, heavyweight politician of the UK), refers to MDMA when one is talking about drugs on the telephone.
Can also be: Pete, Peter, Mandelson.
Drug Dealer: 'Hello'.
Buyer: 'EZ geez, was wondering if Pete Mandelson was about, and what color suit is he wearing?'.
DD: 'Yea he is chief, and he's sporting a lovely champagne number'.