Spell Way

The worst she can say is "NO".

The way I heard this joke as a kid was,

"How do you fit an elephant in a Safeway* bag?"

"I dunno, how?"

"You take the 'S' out of Safe, and the 'f' out of way!"

Then you would hope they actually arrived at the punchline, but you'd often have to prompt them a bit.

*Safeway is a regional American supermarket chain