Etymology: Middle English pensel, from Middle French pincel, from (assumed) Vulgar
Latin penicellus, alteration of
Latin penicillus, diminutive of peniculus brush, from diminutive of penis tail,
penis.
A male organ of copulation that is small or narrow in circumference or width, lacking usual or desirable bulk, which that in male mammals including humans, usually is not able to cause the opposite sex to have an explosive discharge of neuromuscular tensions accompanied by vaginal contractions.