Frogs don't say ribbit!

Yesterday N and I were painting a master piece. We were in silent concentration when N looked at her picture and said "Frig it!"
Surprised by her use of (or what I thought was) my carefully disguised swear word. I said, "Pardon me?"
"I'm drawing a frog." she says
"Hmm, I thought frogs say ribbit." Notice how I slyly try to get her to say something else?... no dice.
She rolled her eyes at me and said, "No, frogs say frigit!"
"Are you sure about that?" another masterful attempt at diversion.
Again with the eye roll thing. then she proceeds to say slowly as if she were talking to the village idiot, "No, Mama. Frogs say FRIGIT!"
I stand corrected by my 3 year old and in case all these years you were wrong to, Frogs don't say ribbit.