kinda several meanings in different contexts, u cant really pintpoint it...
1) like kinda shocked/surprized
1) yoo i got fuckin shook when that girl called...i thought she hated me cuz of last night
2) I got so shook when i turned around and this guy popped up behind me...i thought i was alone
3) (some noises come from outside)
Teacher: Ya just answer your phone...and shut it off
Student: Uhm...That was a passing car