1837. Barham, I. L. (Ingoldsby Penance.) None of your rascally
dips, but sound, Best superfine wax-wicks, four to the pound.
Verb (thieves’).—1. To pick pockets. To dip a lob = to rob a till. Also
to go on the dipe = to go pocket-picking. For synonyms, see Frisk.
1817. Sporting Mag. Defence of Groves at Bristol Assizes. I have
dipped into 150 ... pockets and not found a shilling.