food that is discarded (as from a kitchen)
"The city trucks collected all the rotting vegetables and leftover meals from the restaurant's garbage bin."
Food waste material of any kind.
"The city truck collected all the food waste material of any kind from the communal bins."
In plain English: Garbage is trash that you throw away because it has no more use for you.
"Please take out the garbage before you leave for work."
to eviscerate
"The harsh criticism completely garbageed his confidence, leaving him unable to recover from the emotional damage."
bad, crap, shitty
"The manager called their latest business proposal garbage because it was full of errors and made no sense."
The word garbage entered Middle English from Anglo-Norman and Old French with the original meaning of kitchen waste or fowl offal. It ultimately traces back to a Germanic root related to making something neat or clean.