Definition of spleens:
(n) :
(anatomy, immunology) In vertebrates, including humans, a ductless vascular gland, located in the left upper abdomen near the stomach, which destroys old red blood cells, removes debris from the bloodstream, acts as a reservoir of blood, and produces lymphocytes.
(v) :
To annoy or irritate.
(v) :
(ambitransitive) To complain; to rail; to vent one's spleen.
(n) :
A fit of immoderate laughter or merriment.
(v) :
To remove the spleen, or, by extension, to gore.
(v) :
To excise or remove.