A South-East Londonbased contemporary dance. Consists of flapping your arms as if they were wings. Can apply to all music but particularly songs with a 'sick drop'.
If you're speaking to someone more than friends but less than seeing each other and no way near a couple. Usually you haven't told each other how you feel r anything like that. Not exclusive although it could easily develop into it.
'hey Joe, how's Elly? You actually birding her now?'
'yeah think so we speak pretty much every night now'
Having sex. Can easily be used in combinations such as, "anal birding" and "slam birding" etc. A discreet term used to describe the nasty when in the presence of those not in the know.