A thug that is chill and goes with the flow, but if something goes down he is the first to stand up, say something, fight and protect his loved ones.

The horrible moment when you realise that you have accidentally done something very slightly wrong which has very bad (usually embarassing) implications for you. This is typically the moment of realisation that you just sent a dirty text message to a close member of family, typically your mother, rather than the intended recipient.