New American Oxford Dictionary
slap-up
slap-up |ˈslæp ˌəp | ▶adjective [ attrib. ] informal, chiefly Brit. (of a meal or celebration ) large and sumptuous: a slap-up dinner.
Oxford Dictionary
slap-up
slap-up ▶adjective [ attrib. ] Brit. informal (of a meal or celebration ) large and sumptuous: a slap-up dinner.
Oxford Thesaurus
slap-up
slap-up adjective Brit. informal a slap-up dinner: lavish, sumptuous, elaborate, expensive, no-expense-spared, fit for a king, princely; excellent, splendid, magnificent, marvellous, superb, first-class. ANTONYMS meagre.
Sanseido Wisdom Dictionary
slap-up
sl á p- ù p 形容詞 ⦅英 くだけて ⦆〖名詞 の前で 〗すばらしい, 立派な ; いきな ; 豪勢な, ふんだんな 〈食事 〉.