Uhm.... Helda, Zela, Zala, Zelra, Zerda, Zeda

That's all I got

Could be anything. She could glance around and see something that catches her eyes. Like she could spy a feral hog rooting in the dirt and blurt out 'Truffles!'

Oh now I get Ya. I thought more like how she butchers her own name like how link did making it into lunk

Could be that. the door's wide open for how the scene goes so long as its funny. As I told someone else: think Piggy McPigface levels of embarrassing.

OK I got one idea.

She stammers and out of the corner of her eye she sees a boko with a crudely made fiddle instrument (link having gotten bokobos to learn about other instruments) and blurts out
"fiddle" and sees another bokoblin this time a sow with freshly made meat pies, "pies"

Boko "so your name is fiddlepie? "

Zelda "uh ya" (internally "f*********k!!!!")

lel. A friend I brought this up to even suggested something as simple as "Um... uh..." "Your name is Ummah?"

I'm getting good ideas from all over. :3

And of course this means that Link's kids could call Zelda 'Aunty Fiddlepie' or 'Aunty Snorta' or Aunty Truffles or anything. xD

If she was thinking of "Lunk", I feel like her thought process would mostly be related to that name rather than hers, so maybe "Lunkle" would work

Damn, I can almost see Zelda crying internally upon realizing that's the name she's stuck with. xD

Sounds perfect considering she'd already be crying internally about being a Bokoblin, what's a little more embarrassment?

Dat's the point. x3
But I'll keep this open for a few days to let everyone shout out a good embarrassing name for 'Aunty Zeldy.'

idk, maybe zordo?

https://www.youtube.com/watch?v=GJzBopVRKPo
Think something like this. Zelda is glancing around, could see anything, and just blurts it out without thinking. the most embarrassing sounding name you can think of. Think Piggy McPigface levels of dumb xD

...so... pea tear gryphon? ;p

Zelda sees a Printing press, a lemon being peeled, cage, and a nitwit

Zelda: uh.... Print... zest.... Cell.... Duh. yeah. Princess zelda. .... CRAP.