A person who helps another person but remains anonymous; i.e., an unseen ally.
Knowing the time on my parking meter had expired an hour ago, I was excited see that an Allyx had fed the meter for me.

Only a timely note left on my desk by an Allyx saved me from getting fired.
by RichardSimmonsRocks August 14, 2019
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A lovely sweet caring girl, that doesn't take no shit from anyone and is very sexy and normally has big beautiful eyes with long , fluffy eyelashes. She has beautiful brown curls she is also very sympathetic and kind to all but is very hot . So if you have a girlfriend or friend named Allyx you are one lucky person.
David: OMG who is that girl over there she is so beautiful but caring at the same time.

Mike: that's allyx she does a lot of kind things to help others and also is a very hot person
by The Bae of the bars June 12, 2017
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Allyx; another way of spelling the unisexual name 'Alex'.

Usually somebody who is trustworthy to you yet doubts they can trust you.

OR:

Somebody who changes friends frequently to fit in.

Also see alex
Girl 1: Kailey has been acting kinda preppy lately, but she used to be punk.
Girl 2: Yeah, shes being an Allyx

--
I can tell Allyx anything, but she won't trust me with a single secret.
by Unavaialable May 3, 2008
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THE RUDEST MOST STUPIDEST PERSON EVER!!! Don't date him he will surely get annoying
Girl: that don-allyx kid is mean
Other girl: he is, don't trust him
by A.person.to.trust May 22, 2017
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A woman who is at least a decent actress who even if her performance or appearance may not be the greatest, she can easily come off as a very charming, beautiful, and smart. Disagree if you will.

Also, you know you find her sexy as hell regardless of what you don't like about her.
I wish Allyx Tebbs was mine! I would do anything to have her!
by Allyx Brooke Tebbs November 12, 2018
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