。
Get me my hat.
Literal
I [of-の] hat [object-を] take-come [give-くれ].
とってくる is a compound: 取る ('take') + くる ('come') = 'get and bring back.' The くれ at the end is the masculine imperative of くれる ('do for me'), making this a direct request — 'go get it and bring it to me.' Matches the rough masculine register of 僕.