Definition of mad keen in English:

mad keen

British informal Extremely enthusiastic: some men are mad keen on football
More example sentences
  • The Namibians are mad keen anglers and are extremely knowledgeable, competent, kind, helpful and dedicated to giving their clients the best possible trip.
  • Tony Heart is himself a mad keen angler and he works extremely hard at putting his anglers over the abundant quality fish; his spacious boat is purpose built for angling and cruises effortlessly at 14/15 knots.
  • You're mad keen on history - what's your favourite fact about London's past?
See parent entry: mad

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Word of the day anomalous
Pronunciation: əˈnämələs
adjective
deviating from what is standard, normal, or expected