Monosyballic Share definition Flag A misspelling of “Monosyllabic.” Often used by those not well versed in English or dumbasses. Jimson: this is a monosyballic word! Jimothy: No son, it’s monosyllabic. Monosyballic by idontevenknowwhatalifeis December 2, 2025 Get the Monosyballic mug.