Past tense of "to wing"?

Is there a past tense of the verb "to wing," meaning to make up on the fly?

Inspired by a blog post of Wil Wheaton, quoted partially below.

"Is it from a recipe, or are you winging it?"

"I've made so many different recipes from so many different places, I just looked through the pantry and refrigerator and wung it."

We looked at each other. "Wung it?" I said. "I think I mean I am winging it. What's the past-tense of winging it? Wang it? Winged it?"

"I don't know, but it's not 'wung it,'" she said. I couldn't argue with her.

Solution 1:

"I winged it" is correct.

The phrase comes from "theatrical slang sense of an actor learning his lines in the wings before going onstage, or else not learning them at all and being fed by a prompter in the wings" http://on.oceg.org/hRqPUt

Solution 2:

"wung it" was relatively common colloquial usage when I was growing up in NW England. "winged it" in this context sounds wrong, even if technically correct.

"winged it" meaning "hit in the wing" (when talking about birds or aeroplanes) was generally not changed to "wung it".