What is Streak ?
Streak is (noun) 1. a line of colour She’s had blonde streaks put in her hair. 2. a particularly characteristic type of behaviour She has a ruthless streak in her. It’s his mean streak which makes him not buy any Christmas cards. 3. a period when a series of things happens I was on a winning streak, I won three times in a row. I hope our un- lucky streak is coming to an end. streak of lightning a flash of lightning a streak of luck a period when you are lucky(verb) 1. to go very fast The rocket streaked across the sky. 2. to run about naked at a public event (informal.)
source: Easier English, Student Dictionary Upper Intermediate Level