Flag

[Sarah]

An aquatic plant, with long, ensiform leaves, belonging toeither of the genera Iris and Acorus. Cooper's flag, the cat-tail(Typha latifolia), the long leaves of which are placed between thestaves of barrels to make the latter water-tight.-- Corn flag. See under 2d Corn.-- Flag broom, a coarse of broom, originally made of flags orrushes.-- Flag root, the root of the sweet flag.-- Sweet flag. See Calamus, n., 2.

[Sarah]

The act of getting it on with a girl/guy from a country other than your own. The qualification is that he/she has to be born in the country you want to lay a claim to, and ethnic heritage from there is a plus.
Made popular by Roosh V, traveling author extraordinaire.

[Sarah]

head cover representing something (your hood, race, pride, etc.)

[Sarah]

To start getting tired, lose energy or enthusiasm.
This could mean it's time for a coffee, red bull, [power nap] or swift exit.

[Sarah]

(v) To read a book or other piece of literature while on the toilet.

[Sarah]

On dating and hookup apps, flagging proves you are your profile picture. If someone wants you to 'flag,' they tell you to write something totally random on a piece of paper. You write it down and then take a selfie while holding the piece of paper (include your face/body/whatever is visible in the profile pic). If profile and 'flag' pic match, you get to proceed to shenanigans. If they do not match, then you're a fake and should really find another hobby.

[Sarah]

A term commonly use to describe the bandana that gang bangers, gangsters, kids influenced by rap and others wear in their back left pocket to signify allegiance to something. Members of the Bloods wear red flags whilst Crips wear blue flags. These can be found in the back left pocket, around the head, neck or wrist. Others can wear them as a sign of support towards friends or a particular ideal.

[Michiko]

[Fake laugh] that transcends into a [gag]. Mostly done to [respond] to really poor jokes or non- jokes.

[Sonia]

if your [gang bangin] it [means] your [bandana].

[Michiko]

Flag in Golf. A banner that is attached to the top of a stick to demonstrate where the hole is located on the putting green.