Someone who's a degenerate that fucks his sister.
Person 1: I held hand with my sister
Person 2: You're a harmless alt
In a fashionistic sense, it means to stray away from newspaper and capitalistic definitions of what it means to be perfect and acceptable in society. It is a DIY and anti-big-company based ideology.
This is not to be confused with the "hello kitty says ACAB" monster energy gun people, who promote the ideal that more money spent=the more alt you are, which is the direct opposite definition of alt.
People who are against the promotion of perfectionism in the media, and like to look a different way than the societal norm can be considered alt/alternative.
Loves Frog earrings. Hates Trump. Either is great at math or awful at it.
I have a Alt Bisexual girlfriend
A musician or music lover who has an alternative career or idea that has made them successful in the creative industries.
An Alt Mu could be any of the following and more! Music Journalist, Music Photographer / Videographer, Graphic Designer with a passion for music design, Tattoo artist for musicians, burlesque performer, drummer / novelist. Gerard Way and Nina Kate are good examples.
Guy 1: If you ALT F4 then get an invisibility glitch
Guy 2: *Leaves game*
FREE BOBUX/VBUX/ORTHER INGAME CURRENCY THAT I CANT THINK OF
<scammer> hey kid alt-f4 gives free Robux
<LITTERAL6YEAROLD> OK, I TRY IT NOW
<LITTERAL6YEAROLD> *disconnects*
<scammer> MUAHAHAHAHAHA he left
When combined allow you to instantly win any online game, such as Overwatch for example.
Person1:Press Alt-F4 To Win
Person2:Ok
Person2 has left the match