I had to look up what ‘glass him’ was, and I was not disappointed.
GUYS.
Wait how did so many people not know what ‘glass him’ meant.
From some googling and wiki-surfing, it appears that the verb usage of ‘to glass [someone]’ isn’t actually common enough in the US to actually even show up on a Google search, and the Wikipedia page only mentions areas with ‘frequent glassings’ as including places like the UK, Australia, and New Zealand; hell, my US-derived spellchecker tells me ‘glassings’ is an incorrect word. The slang is apparently far from universal.
¯_(ツ)_/¯
I thought glass him was some weird slang for clinking glasses as part of a toast