"ing" is used by gamers as a short "ingame"

Marginalized Orientations, Gender identities, And Intersex. it’s meant to be an all inclusive umbrella term for asexuals, homosexuals, multisexuals, trans people, and intersex people. Alternative to LGBTQIAP+
Alternative to MOGII, easier to pronounce.

Introduced in Metroid Prime 2: Echoes. Ing were born when a phazon meteor struck the planet Aether with such force that a dimensional rift created a dark version of the world (Dark Aether). This warring race seeked to destroy the light world and its peaceful sentients, the Luminoth. They are capable of possessing other creatures, allowing them entrance into that world; light is fatal to them otherwise.

In solid form, Ing are dark, spider-like creatures with five legs and several glowing red eyes (although they can be depicted as one big red orb like in the official art). They can also revert to a puddle of dark matter.

The creepy health-sucking monsters in Metroid Prime 2: Echoes.

The "-ing" suffix
Adding -ing to the end of a word to start an idiotic new trend in order to take some idiotic pictures to get attention from other idiots who will follow.

ing - a suffix used to form adjectives or verbs - in the ghetto language, the suffix -ing is hardly ever used. Instead, you can replace it with the suffix -in' or just -in. The sound of the g is eliminated.

A speech impediment noise made at the end of words, hugely popular in the gay community