(drugs) the occasional use of drugs.
|Panic in Needle Park (1971) 35: He was only ‘chipping,’ using drugs occasionally when they were handy, and had not yet acquired a habit.|
|Drugs from A to Z (1970) 61: chipping chippying; chippying [...] infrequent, irregular use of narcotics for pleasure and without physical dependency.|
|Bk of Jargon 340: chipping: Also chippying. Nonhabitual, occasional narcotics use for pleasure, among nonaddicts.|
|ONDCP Street Terms 6: Chipping — Using drugs occasionally.|