This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. In rail-laying, a workman who drives the spikes.

"A small robocraft called a spiker, one of several controlled by the mothership, would then fly up and zap the errant iceberg in a calculated pattern, producing jets of superheated steam that would thrust it into a safer orbit."

biker    byker    hiker    piker    striker