Verb

• present participle of troll

Noun

• The act of one who trolls (in various senses).

Verb

• present participle of roast

Examples

• Broiling is but another way of roasting those cuts of meat which have a broad, flat surface such as steaks, chops, or cutlets.

Adjective

• (colloquial) Very hot.

Examples

• The day started out cool, but by noon it was roasting.

Noun

• The act by which something is roasted.
• (colloquial) A rebuke or reprimand (usually from the recipient’s point of view).

Examples

• These elements are expelled more completely by a large number of comparatively incomplete roastings than by a smaller number of extremely thorough roastings […]
• My boss gave me a roasting for last month’s sales figures.