Green’s Dictionary of Slang

1. (UK Black, also ammi, ammy) Amnesia, a variety of cannabis/marijuana.

2015		67 ‘Take It There’ 🎵 I got too much am in the room and it stinks so I need some Febreze.
2015		67 ‘Low But Bait’ 🎵 That’s not ammy your smoking big man.
2016		67 ‘Every Year’ 🎵 You said that it’s ammi / That’s not ammi / That pack there come hard ash.
2017		1011 ‘No Hook’ 🎵 Like Am got my phone line running.

2. see ammo n. (1)