Hemmer

[Sarah]

One who, or that which, hems with a needle. Specifically:(a) An attachment to a sewing machine, for turning under the edge ofa piece of fabric, preparatory to stitching it down.(b) A tool for turning over the edge of sheet metal to make a hem.

[Sarah]

Someone who causes discomfort or irritation. Stupidness that gives you a headache. Short for brain haemorrhage
The art form of winding someone up to boiling point