What if instead of pink toad being code word for unbridge it was pepto-bismal?
Scene set during the teachers lounge.
McGonagall: Filius i have been hearing the most odd expression lately.
Filius: oh? Which one? I have heard at least 5 new ones this week alone.
McGonagall: five?! My word, the new generation sure does revitalize the slang from my own days.
Y/N *walks in with severus behind her*: what slang Min?
Severus: yes, Minerva.... due enlighten us how the English language is being even more butchered.
McGonagall: peto-bisalert.
*Y/N spits out the coffee they just took a sip, laughing while Severus chokes on his*
Y/N *cackling*: it's pepto-bismal alert!!! HAHAHAHAHAH!!!! *they pat Severus on the back to help him cough up the drink he took*
Filius: what does that mean?! And why is it so funny?
Y/N: its a muggle over the counter remedy for digestive problems. It also happens to be a very specific shade of pink. You ok, Severus?
Severus *very raspy and hoarse*: Fine.
*y/n rummages through the bag they always carry just as Umridge passes through the lounge in a false pretense of forgetting somthing......yea right.*
Y/n *pulling out the bottle after 5 min Umbridge leaves*: this y'all is pepto dismal. A *VERY* specific shade of pink.
Severus *starts humming the tune to it*
Y/n: if you've got nausea, heartburn, indigestion, upset stomach, and diarrhea....
Y/N and Severus locking gazes and break into a laughing fit.
*the rest of term was spent with the professors adding pepto bismol to their repertoire. Filius even hummed the jingle. The students getting a rise out of it. But detentions dropped by half and Umbridge couldn't explain why*