Sledging or "Mental Disintergration" as it is also known is the tactic of talking to players on the opposition side (particularily batsmen, as taking on a whole team in the field is never a good idea) with the objective of destroying either their concentration or their confidence/self esteem. Sledging is practised in a large way by the Australian Cricket Team, but most International teams partake in sledging. Sledging can be merely an opposition player talking constantly to the batsman, but has mostly become known as players swearing and questioning their lineage.

Commonly used in text messages or social media as a short form for Very Sound Advice.

Practice of insulting opposition, used mainly by Australian cricketers.

Sleep edging - the masochistic practice of letting yourself get really close to falling asleep before waking yourself up again.

the intense and delibitating feeling after you take an ecstasy tablet, before you 'come up'. During this time, you can feel like you're going to die, and often need to sit down. This very strong feeling goes away after about an hour, and then you 'come up', sometimes very intensely.

To fall asleep at a party before the party as finished.
Also you can use it as 'to sledge'; a person who is sledging is a 'sledger' and someone who is sledging is said to be 'sledged'

Any words from the mouth of a man wearing a ring on his right index finger