I found this sentence while I was practicing in Wanikani platform.
「ドタマかち割って脳みそストローでチューチュー吸うたろか!」とお化けは怒って言った。
Translation according to Wanikani: "Do you want me to crack your skull open and suck out your brains with a straw?" the ghost said angrily.
There is a たろ in there and I have not yet been able to decipher its meaning. Would you be so kind as to give me a clue? I'd really appreciate it if you did so.