Keysmash

Even keysmash, that haphazard mashing of fingers against keyboard to signal a feeling so intense that you can't possibly type real words, has patterns. A typical keysmash might look like "asdljklgafdlik." or "asdfkfjas;dfs"—quite distinct from, say, a cat walking across the keyboard […]

These seemingly nonsensical turns of phrase carry intricate meanings: the keysmash "sksksk" can be described as an awkward laugh, […]

And it's more pronounceable than a traditional keysmash—“as;ldfkjls”—so it can be said out loud.

[…] or I keysmash my feelings away every time there is an attractive picture of them that surfaced on the internet and since every picture is an attractive picture, let's just say my keyboard knows the pain I have to go through.

It's an abbreviation of the word "feelings," probably because it's easier to type a five letter word or to keysmash.

I also heard from several people who use the Dvorak keyboard, where the home row begins with vowels rather than ASDF, who reported that they just don't bother keysmashing anymore at all because their layout makes it socially illegible.