having a wonderful time; wish you were here

(I'm) having a wonderful time; wish you were here.

Cliché a catchphrase that is thought to be written onto postcards by people who are away on vacation. John wrote on all his cards, "Having a wonderful time; wish you were here." And he really meant it too. "I'm having a wonderful time; wish you were here," said Tom, speaking on the phone to Mary, suddenly feeling very insincere.
See also: have, here, wish