GTTFFJ is an acronym that means get-taehyung-to-fall-for-jungkook.
Basically, it is an acronym used by taekook-shipping ARMY with no lives who read amd write fan fiction and low-key stalk seven, admitidly hot korean men.
Get the fucker done!
You work on a project for weeks, You go back and forth to get it right, talk with support people and then the moment hits after all the work and it’s time to let your team know: GTFD!
Someone is telling you a storyyou don't have time for. You also don't have the time or patience the say "Get to the fucking point," or may be in public, so you elect to say gttfp.