noun

• (countable) A blow, especially one given with the open hand, or with something broad and flat.
  "He gave me a friendly slap on the back as a sign of camaraderie."
• (countable) A sharp percussive sound like that produced by such a blow.
  "the slap of my feet on the bathroom tiles"
• (countable, music) The percussive sound produced in slap bass playing.
  "Havens goes into the terrific Freedom for an encore, which will turn out to be a highlight of the movie; its chopped guitar and conga slaps pre-empt late 90s R&B."
• (slang, uncountable) Makeup; cosmetics.
  "Well, she schlumphed her Vera down the screech at a rate of knots, zhooshed up the riah, checked the slap in the mirror behind the bar, straightened up one ogle fake riah that had come adrift, and bold as brass orderlied over as fast as she could manage in those bats and, in her best lips, asked, if she could parker the omi a bevvy."

verb

• (transitive) To give a slap to.
  "She slapped him in response to the insult."
• (transitive) To cause something to strike soundly.
  "He slapped the reins against the horse's back."
• (intransitive) To strike soundly against something.
  "The rain slapped against the window-panes."
• (intransitive, stative, slang) To be excellent, especially when relating to music.
  "The band's new single slaps."

adj

• (slang, UK) Very good, excellent, amazing.
  "These cookies are slap."

noun

• (medicine) Acronym of superior labrum from anterior to posterior.