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4.
A group of people (usually involves on gay guy who is a tool the rest are girls) who just go to parties to which they are never invited to but hear of from a friend and somehow leech their way in. They add no social contributions to the event but instead just smoke all the weed, drink all the booze eat or waste all the food and just have sex and destroy shit. They are dumb as fuck and to connected to social media to ever put their phones down because they have to be more anti social and tweet or facebook or whatever. Finally they are just downright sluts with no morals or bodily integrity and again are dumber than a bag of hammers
York Region girls, most of them are in a gyaldem.
by thatguywhodoes July 02, 2013
 
1.
Gyal dem is a coolie made slang term for indicating 1 or more girls. Usually this term is used to point out a good looking girl or group of good looking girls who are near by.
"Eh yo look, gyal dem coming this way".

"Woyy, look at the gyal dem, I want to bang at least one ah dem today star".
by trinidadnic June 18, 2009
 
2.
gyaldem is like a gang of girls usually about 30 to 50 dat get together everyday to sit around looking bored and glassyeyed on walls cos there really isnt nothing else to do,smoke weed and wait out side schools to start fights.i think this word is only or ushally used in London.they have a name for themselves,and each indevidual has there own nickname like ''heartless gyal ,that they have scared on to themselves or the initials,or written on various walls or buildings/busstops around their 'ends',they scorn america and everything about it,except maybe a few songs from the bronx.they listen to london emmces ,dont attened school,and use words like 'blood' 'ber' 'gwan' and end every sentence with 'bruvs' and start every sentance with 'boi'
the latin gyaldem, tottenham gyaldem , east gyaldem,hackney and clapham gyaldem ..
heartless-hispanic , lady G ,gatinha/

'boi,i saw sum breh onda bus today,he wos tick bruvs!
by shanna March 27, 2005
 
3.
This expression basically means your home-girlz. It is taken from the male origin man-dem. Can be used by both male and female homies, 2 describe thier home-gyal.
1) wassup gyal-dem? wot u up 2?
2) ive gotta gyal-dem thats obbsessed with that stuff! 4 real.
3) uve been my gyal-dems from pure time, trust.
by Adz H January 08, 2006