Popularslang term, originating in South East London and commonly used in grime/underground music, meaning the action of being 'out', rude or unpleasant.
'Hey Bro, stop acting wootini and come to my party on Friday'
'The chav was acting all wootini when she decided to stop her ex-boyfriend seeing his kids.'
"It's Wooting Time." is used when an osu! player uses a Wooting keyboard to stream a high amount of bpm. They do this using the feature 'RapidTrigger' which Wooting has made specifically for their keyboards.