Slight rambling ahead...
I found these two entries in
The Unofficial Lion King Character Encyclopedia:
[quote]MEE-TOO: Male/Female lion cub. Playmate of young Simba and Nala, he was
dropped during initial storyboarding.
SOURCE: Walt Disney Corp.
REFERENCES: TAOTLK[/quote]
[quote]MHEETU: Adult lion. A member of Simba's pride. Mheetu is brother to Nala,
and thus is evidently permitted to stay with the pride. He took the lost
and forgetful N'golo as his mate, and they bore three children: Mwathu,
Simala, and N'kamali. Unfortunately, the latter two perished in a fight
with Kisasian, along with their mother. The dedicated Mheetu raised his
surviving son Mwathu to adulthood, and it remains to be seen if he will
attempt to exact retribution against Kisasian.
SOURCE: Andreas Spring
REFERENCES: ALIL, SS, possibly TAOTLK(see note below)
*NOTE* This also may be the Disney character Mee-Too, a male lion cub,
who was dumped in the early planning stages of "The Lion King"(back when
it was known as "King of the Jungle"). The spelling of the name is
questionable, as it is spelled "Mee-Too" in "The Art of the Lion King,"
which is considered a canon Disney source, and "Mheetu" in "A Lioness's
Legacy," written by Andreas Spring. If this is simply the author's
decision to change the spelling to an Africanized version, then credit
for this character should go to Walt Disney Corp.[/quote]
In the references section after each entry, TAOTLK stands for "The Art of the Lion King," ALIL stands for "A Lioness's Legacy", and SS stands for "Sweet Salvation". The last two sources are fan fiction, and Mheetu is said to be Nala's brother only in those two stories, not in "The Art of the Lion King".
I was about to draw the conclusion that perhaps Mheetu wasn't really Nala's brother and his name was really spelled "Mee-Too" and fans had unknowingly equated the semi-canon and fan-made characters and fabricated some of his history, especially since I couldn't find any people saying exactly where they had heard that Mheetu was originally used to lure Simba into the stampede.
Then I did a bit more digging and found these little tidbits from Tima's extensive TLK character guide:
[quote]Mheetu has been mentioned at least on TLK laserdisc version and in the books "Mouse Under Glass" and "The Art of the Lion King".
AoTLK calls the cub Mee-Too, laserdisc calls him Mheetu. "Mheetu" may have been an attempt to make the name sound more African.
Laserdisc version shows some concept images of Mheetu, bat-eared fox Bhati and other deleted characters:
[...]
Mheetu was Nala's "tag along", little brother who was always getting into trouble. In one version of the story, Scar lures Mheetu into wildebeest stampede so that adolescent Simba must risk his life to save the cub.[/quote]
Then I found this on ye olde TLK Rumor Mill:
[quote]The book ["Mouse Under Glass"] also mentions a discarded plot involving some childhood friends of Simba and Nala's--among them "Nala's kid brother Mheetu and her wisecracking friend Bhati, a bat-eared fox."[/quote]
So apparently Mheetu
is Nala's brother and Mheetu and "Mee-Too"
are one and the same. I guess the writer of The Unofficial Lion King Character Encyclopedia hadn't heard about the TLK Laserdisc and/or "Mouse Under Glass" and the authors of those two stories
had.