bop

noun7

1. •
   (slang) A good, catchy song; a song that makes one want to dance.
2. •
   A style of improvised jazz from the 1940s.

   • That grand wild sound of bop floated from beer parlors; it mixed medleys with every kind of cowboy and boogie-woogie in the American night. — 1957
3. •
   A casual party with dancing; a disco.

   • […] their first kiss during the school bop, with Paul Weller singing “You're the Best Thing” and everything tingling from her toes up […] — 2012
4. •
   A party hosted by a college's JCR or MCR.

   • Theatres; Music House used for bands; May Ball; very popular weekly bops in JCR and MCR; library (57,000 books); 40 networked PCs, 24-hrs. — 2005
5. •
   (informal) A very light smack, blow or punch.
6. •
   (slang, offensive) A promiscuous woman, especially in the context of having a high body count or giving fellatio to many men.
7. •
   (slang, offensive) A woman who posts erotic content for money.

verb5

1. •
   (informal) To strike gently or playfully.

   • “Better him than me,” I said while my mother fluttered her blue eyes at me and bopped me on the nose with a wooden spoon. — 2013
2. •
   To dance to music with a marked beat.

   • She was bopping to the song's drum beats.
3. •
   (informal) To walk casually; to stroll.

   • "I bopped down to take Charlie out for a surprise lunch, but he's out at the warehouse doing something with somebody or something. So I'm letting you take me to lunch." — 2011
4. •
   (slang) To have sex.

   • I'm here because your wife and I have been bopping like bunnies. Here are the pictures to prove it. — 2002
5. •
   (slang) To fellate.

   • Squa' said she just done the 6, now she on the ends just boppin' (Bad, she bad) Now she on the ends just boppin (Boppin') — 2016

noun2

1. •
   Initialism of burden of proof.
2. •
   Initialism of blowout preventer.