This is the 15594th most frequent Polish word.
strzelaj
"Strzelaj" means "Shoot" in English.
Here, 'strzelaj' is used as a command to shoot at a target, indicating an action in target practice or games.
Strzelaj do celu i staraj się trafić.
Shoot at the target and try to hit it.
In this context, 'strzelaj' is used colloquially to suggest guessing an answer.
Nie wiedział, czy wybrać odpowiedź A czy B, więc powiedziałem mu: 'Strzelaj!', czyli zgaduj.
He didn't know whether to pick answer A or B, so I told him: 'Take a shot!', meaning to guess.
Here, 'strzelaj' is metaphorically advised to mean delivering a quick action, referring to the timing in storytelling.