OMG IM LIEK SUCH A NERD LOL is an utterance of horn-rimmed-glasses-wearing pseudo-nerdgirls who create YouTube vids pretending to be interested in obscure topics. These girls are able to get attention from both Chad and a circle of orbiters despite the fact that their male looksmatch would be incel.
This represents further female incursion into fields which were previously held to be for males, such as video games. This can deprive male incels of interests or 'copes' which have not yet been infiltrated by females. As such, you can expect similar sentiments to be expressed by 'gamer girls' and their ilk. It is also associated with the conceit that females can become orthodox representatives of obscure cliques or interests, despite not taking these seriously