The term originates from the base definition of a group, no less than 2, incoherant bigots who have nothing better to do but pester and drop feces from their mouths that only irritate everyone in the vicinity because nobody wants them around.
Another sub definition is Flock of Faggots thinks that using urban dictionary to vent their bitching monthly bleeding vaginas, is going to do a damn thing, and stupidly thinking it accomplishes anything at all besides proving that they in fact need to get out of their nesting basement.
I know 2 players in PUBG who are Acting as a Flock of Seagulls.
Being comparably prone to getting duped/deceived as are da common noisy white-feathered "nature's vacuum cleaner" dat hangs out at da coast. (Can also loosely refer to one's likelihood of naively getting copiously pooped upon by said wing-swishing aerial bombers... well, don't stand underneath a wheeling/hovering flock of said flapper-crappers, Stupid --- da more of dem dat are simultaneously occupying one small parcel of airspace, da more likely dat at least one of dem will need to "spend a penny" during da particular time while they're positioned over your head, and just like those comparably-beautiful-but-also-horridly-raucus-and-filthy Canada geese, they usually don't pay much attention to what's below them whenever they "file their business-papers"!)
Another definition of "seagullable" could be with regards to one's lack of basic forethought or shrewdness when conducting everyday activities around said large opportunistically-watchful morsel-ravenous beach-scavengers... those prominent "Do not leave food unattended --- seagulls will steal it!" signs on the outdoor porch-decks of coastal diners aren't posted there for nothing!
When you’re waiting for your coffee to be made, and there’s a big queue and someone swoops in and takes your coffee because it’s a similar order to theirs.
I ordered a mocha but I think I’ve been seagulled
To eat at a frantic pace, with very little chewing
I barely had time to sit, I just seagulled my lunch between meetings.
When food is brought into a meeting, left in the hallway and non-meeting employees grab little bits as they pass by
What happened to our meeting snacks? The accounting department seagulled them.
When you tie a knot in your condom and throw it in the air. The sound of screaming seagulls is deafening.
Dude, I served lunch to a flock of the screaming seagulls.