1. past tense of troll: to fish by trailing bait or lures from a slowly moving boat
Usage: fishing
2. past tense of troll: to deliberately provoke or harass someone online with inflammatory comments
Usage: internet slang
3. past tense of troll: to search through something systematically

Examples

• They trolled for salmon all morning.
• The fishing boat trolled slowly along the coast.
• He was trolled mercilessly in the comments section.
• Someone trolled the forum with fake news.
• She trolled through old files looking for the document.
• The detective trolled the database for clues.