I heard this word in an anime it's suppoded to mean trash(insult) this is the whole sentence
honnouji gakuen no gomidomoga
i know gomi is the word for trash but what "domoga" stand for?

ごみども plus the particle が. ども is a derogatory* way to pluralize people.

*Except when applied to a first-person pronoun - then it's humble.

Vempele Wrote:ごみども plus the particle が. ども is a derogatory* way to pluralize people.

*Except when applied to a first-person pronoun - then it's humble.

In other words, it's a very appropriate way for Satsuki to address her subjects.