The use of ite and itai

This is something I recently noticed but wasn't too sure about.

In videos, I noticed that girls would say 「いたい」and guys say 「いて」.

Are these two words gender biased, or can any gender use either?

I'm sorry if I mispelled them. (´･ ･`)

Yes, you are right.
Girls from girls' school often say "いて", they tend to be more boy's behavior I guess....

いたい is the gender-neutral word for "It hurts," "it's painful," or "ouch!" It is an adjective as well as an interjection.

いて, いてっ, いてえ! are rather male/boyish version (a bit rough) of "ouch!" So boys or guys tend to use this one, or even by females when they don't or can't care about how they sound like, or when they want to sound rough (as in the example in the post above).

Saying え or えー instead of あい at the end of words is very common.

(Needless to say, it is a colloquialism and you should not use it to your boss.)

Another story but might be fun.

I suppose that Monday is usually pronounced "mandei" but, "mandai" in Australia?

A in the Monday is changed its pronunciation in many cases.
It is same in Japan.

For example, radish is "daikon" is called "dekon" in Kagoshima,
and "diakon" in Nagoya.
"Daikon Dai suki" is "Dekon De suki", "Diakon Dia Suki".

So sometimes "Itai" is changed to "Ite or Itee", "Itia" in some area.

Thanks for all the replies, everyone. \(^^)/ They are all very helpful~