spunk
noun
1. (countable, obsolete) A spark.
2. (uncountable) Touchwood; tinder.
3. (countable, chiefly Scotland, obsolete) A piece of tinder, sometimes impregnated with sulphur; a match.
4. (uncountable) Courage; spirit; mettle; determination.
5. (countable, Britain, Australia, New Zealand, slang) An attractive person (normally male).
6. (uncountable, chiefly Britain, vulgar, slang) Semen.
verb
1. (slang, vulgar) To ejaculate.