slap-up slap-up /ˈslæp ˌʌp/

adjective

1. Very good  ( bang-up , corking , cracking , dandy , groovy , keen , neat , nifty , not bad , bully , great , old , peachy , slap-up , smashing , swell )
   very good
    He did a bully job
   he did a bully job
    A neat sports car
   a neat sports car
    Had a great time at the party
   had a great time at the party
    You look simply smashing
   you look simply smashing
    We had a grand old time
   we had a grand old time