I'll be answering this from my childhood.

Lucky Charms

OH NAW!

Reese's puffs

NAW, HELL NAW!

What latter does it start with?

K

Keebler cereal

That's a thing? Naw-

Koko Krunch

Not even close

Kix

And boi since when do you spell so badly-

That was autocorrect, latter is a real word XD

Autocorrect sucks dick lmao, I have it off

Tf lmao

I suck dick too (Jk)

Nah I don't, I wish I could tho

Honestly same-

But you get it

Not really no-

Meh

(Following the last reply I saw, NO)

Which one

The one that doesn't have a "reply" button on the top right corner. Also keep guessing.

Mk

King Vitamin

ÆUGH

NO

æugh

Kaboom!

No. Wth is that.

Krusty-O's

No-

Krave

(To the last reply mentioning a cereal name, YES!)

YAY

Is it Krave?

Captain Crunch?

Hell no!