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1):(v)-A minuscule hit or scratch that looks seemingly harmless but turns out to be something that has immediately caused major damage.

2:(n)- A secretly powerful knick; A minor infliction that causes more damage than expected.
2) Simon Belmont's toenail tinsed the spikes, but he instantly died as a result of the minor wound.

2) A tinse from the his razor opened a gash in Tim's face that gushed with blood.
by Optomon October 31, 2003