Green’s Dictionary of Slang

load v.

1. in context of drink or drugs [load n. (1)].

(a) [late 19C] to ply someone with drink.

(b) [1960s] (drugs) to take drugs.

2. [late 19C–1950s] (US) to lie, to deceive.

3. [1900s] (US campus) to prepare for an emergency, eg an exam.

4. [1990s+] (Aus. Und.) of police, to plant false evidence.

5. [2000s] (Aus.) to blame, to scapegoat.

In phrases

load up (v.)

1. [late 19C] to provide with drink.

2. [late 19C] (US) to provide with false information.

3. [late 19C+] to get drunk, to use a drug; also as load up on a drink or drug.

4. [late 19C+] to eat heartily.

5. [1930s+] (Aus./N.Z.) to infect with venereal disease.

6. [1980s+] (Aus. prison) to incriminate through perjured evidence.