On a QWERTY keyboard, 'F' through 'L' sits directly under the home row of the right hand (and the index of the left). It is the path of least resistance for a user who needs to type something but is too flustered, excited, or frustrated to form words.
: On imageboards, users sometimes post “Fghjkl meaning” as a bait thread. Others reply with “REPACK” to imply that the original nonsense has been recompiled into a meaningful shitpost — i.e., the meaning is the act of repacking absurdity into a digestible form. Fghjkl Meaning REPACK
In technical circles, a "repack" refers to a software package that has been compressed or modified for easier distribution. Similarly, "fghjkl" serves as a compressed "repack" of a complex internal feeling that would take paragraphs to explain. Conclusion On a QWERTY keyboard, 'F' through 'L' sits