what does it rhyme with?

I was in the van with the creative, freespirit Madeline last night when she said "Mommy, that man singing that song said a bad word".

I said "what word did he say", thinking surely I would have heard an offensive word since we were listening to RadioDisney.

She said "do you really want me to say it"?

"Well, what does it rhyme with" I said,congratulating myself on my creativity.

She thinks a minute and says "poopid".

I'm so proud. These words are bad words in our home:

Stupid
Butt
Shut up
suck - as in "that sucks"

and your normal list of bad words which they wouldn't know from shinola. (or so I naively believe).