"Thirool": Not an English Word

"Thirool" does not exist in standard English dictionaries. It appears to be a misspelling, typo, or nonce word. Possible intended words:

• Thirl (Scots/dialect): to pierce, penetrate; or a small opening.
• Thrill: sudden excitement.
• Troll: mythical creature; or internet provocateur.
• Tool: implement.
• Spool: cylinder for thread.
• Thurl (dialect): hip joint; or a ventilation slit.
• Tyrol: region in Austria/Italy.
• Terroir: wine/soil character.

If "thirool" is from a specific context (game, fiction, dialect, brand, child's speech), please provide that context for a precise answer. Otherwise, it's not a recognized English term.