The definition of a pat is a light gentle tap.(noun)
An example of a pat is tapping your friend on the back with your hand to tell them they did a good job.
See pat in Webster's New World College Dictionary
Origin: prob. < pat
Origin: ME patte, prob. echoic
Origin: p(oint) a(fter) t(ouchdown)conversion (sense )
See pat in American Heritage Dictionary 4
verb pat·ted, pat·ting, pats verb, transitive
Origin: From Middle English, a blow
Origin: , perhaps of imitative origin.
Origin: From pat1.
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