Perhaps Patty was having a pity party in the potty… and had no time for petty parlance with a pig….even a pretty patient pig like Pig.
Or perhaps she dropped some putty into the potty, and had only enough left for a pithy point. (You wouldn’t want Patty to play with peed-on putty!)..Please, people! Don’t pick on ME….Pastis put the picture of Patty and Pig’s putty into the panel. Poor me, I just picked it up, like a pathetic pox.