1927 2 277/1 Jolly-up, informal dance.
1932 E. Waugh iv. 140 Why can't the silly mutt go off home and leave us to have a jolly up.
1963 3 Oct. 20/2 Many parents rejoice inwardly at..their sons being immured under a régime of spartan rigour, but if the compensating jolly-up in the holidays is carried beyond a certain point the whole exercise becomes..unrealistic.