Green’s Dictionary of Slang

1. drunk.

1987		Eble Campus Sl. Oct.
1999		Eble Campus Sl. Nov. 11: slammered – drunk.
1999		Observer Rev. 4 July 11: Bridget got so slammed.

2. intoxicated by drugs.

1983

Eble Campus Sl. Nov.

3. overwhelmed with work.

1996		Eble Campus Sl. Mar.
2001		A. Parkinson Cutting It Fine 237: You had to make sure you were ready: 440 covers on a busy night. If you got slammed with checks, you had to be ready for it and you had to get that food up.
2017		D. Winslow The Force [ebook] ‘You have a minute? [...] Go outside and talk?’ [...] ‘A minute. You know, it’s slammed. The riots …’.
2020		C. Hiaasen Squeeze Me 289: ‘We’ll be slammed all day, prepping for the ball’.