irresistible impulse is a noun meaning "an urge to do or say something that might be better left undone or unsaid". It carries one recorded sense.
an urge to do or say something that might be better left undone or unsaid
“he felt a compulsion to babble on about the accident”
Definitions, synonyms and semantic relations for irresistible impulse come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.