From Longman Dictionary of Contemporary EnglishOAPOAP /ˌəʊ eɪ ˈpiː $ ˌoʊ-/ noun [countable] British English PEW (old age pensioner) a person who is old enough to receive a pension from the state special rates for OAPs
Examples from the Corpus
OAP• She was an OAP, here for two months because it was cheaper than home.• Tickets are available from Meadowbank Sports Centre on priced £3-£10 with reductions for under 16s and OAPs.• Tickets are £3 and £2.50 for children and OAPs.• Tickets cost £10 on the door for adults and £5 for OAPs.• Tickets are £6.70 for adults, £5.50 for OAPs and children under 16 with an adult go free.• The prestige number-plate on my Fiasco says OAP 5.• How would the OAPs get down town?From Longman Business DictionaryOAPOAP noun [countable] British English Old Age Pensioner; a person who is old enough to receive a PENSION from the government 