What is Deal Sealer?
1.
The characteristic, of a person, that seals the deal when considering entering into a relationship.
Opposite of dealbreaker
The fact that Dave drove a hybrid car, as a testimony to his dedication to a green lifestyle, was a deal sealer when Christine considered a long term relationship with him.
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1.
An interjection often used after one of the five W's (who, what, where, when, why). A humourous statement, it stems from the Dr. Dr..