scissors, n. — Green’s Dictionary of Slang

scissors n.

[ety. unknown; ? link to late 19C scizzors, a type of firecracker that had to be bent double and stamped on to make it explode; see cit. 1966 and note also haircut n.²]

(drugs) marijuana.

1966		R. Goldstein One in Seven: Drugs on Campus in Lingeman (1969) n.p.: Can I borrow your scissors, means ‘I want to buy any pot you can sell me’.
1969		R.R. Lingeman Drugs from A to Z (1970) 223: scissors [...] marijuana.
1977		S.N. Pradhan Drug Abuse.
2001		ONDCP Street Terms 19: Scissors — Marijuana.

SE in slang uses

In phrases

give someone scissors (v.) [one fig. ‘cuts them up’]

to treat someone badly, to pay someone back (for a slight or injury).

1847

J.S. Robb Streaks of Squatter Life 31: Thar is a fellar of the inimy who’s dead bitter agin us and our town, so you must gin him scissors!