>>107396254>>107396603Scrap
Scrapheaps
Shitheaps
Junk
Junkheaps
Tinmen
Outmode(d)(s)
Shitheaps
Calculators
Roombas (Hoovers if you're old fashioned)
Rustbuckets
Rusties
Wrecks
Nickelbacks
Hulks (naval term)
Metalheads
Oxidizers
I like "rusties" a lot because it sounds like "roastie". I think "monkey model" could potentially apply but it's relatively specific to military stuff and hence would work best as an insult specifically for military robots.