Synonymous with the phrase High Five.
You like Simon and Garfunkel too? Hand slap!
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The jocular act of hitting someone in the face, usually gently, with a cold, plastic milk bottle. The bottle is generally at least 6 pints รขยย large enough to cover one side of a person's face.
This action often just cools the victim's face in a pleasant way, rather than actually hurting them.
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