butt spike (English, noun)
expansion: butt spike (plural butt spikes)
Senses:
topics: engineering
government
military
natural-sciences
physical-sciences
politics
tools
war
weaponry
glosses: A small blade or spike on the rear end of a spear, used as a counterbalance and as a backup if the spear broke.
tags: historical
Forms:
form: butt spikes
tags: plural