Basher

Noun

1. One who bashes something, figuratively or literally. Before the days of pneumatic rivet guns, the member of a riveting team who hammered the rivet to upset the bucktail to form the field head (see rivet).
2. Before the days of pneumatic rivet guns, the member of a riveting team who hammered the rivet to upset the bucktail to form the field head (see rivet).
3. One who engages in gratuitous physical or verbal attacks on a group or type of people.

   "a Paki-basher"

4. A trainspotter, especially one who likes to travel on specific trains or trainlines.
5. A rainproof sheet for sleeping under.