Which former Dragon's Den investor was known for the phrase “I'm out” during pitches?

Duncan Bannatyne was the former Dragon's Den investor especially associated with the phrase “I'm out” during pitches.

On Dragon's Den, a Dragon who decides not to invest commonly declares that they are “out.” Bannatyne became strongly associated with the phrase because of his blunt, decisive style when rejecting proposals or ending his participation in negotiations.

The wording is part of the programme’s investment language rather than a unique legal term. Saying “I'm out” indicates that the Dragon will not make an offer, although other Dragons may continue questioning the entrepreneur and negotiating a deal.

Other investors also used the phrase, so it is not exclusive to Bannatyne. He is nevertheless the Dragon most often linked with its memorable delivery in popular discussion of the show.