dumpster fire UK /ˈdʌmpstəˈfaɪ.ə(ɹ)/US /ˈdʌmpstɚˈfaɪəɹ/ noun1 •(US, slang) A chaotic, unpleasant, unmanageable thing, situation, or person; a disaster.As honeymoons go, this was a total dumpster fire. — 2015 formsdumpster fires