Types of Parties: Clambakes

A clambake is an outdoor party, especially a seashore outing where clams and fish and other foods are usually cooked on heated rocks covered by seaweed. A clam is a shellfish with two shells joined together, used as food. Seaweed is the term applied to any of various plants growing in the sea, especially marine algae.

Types of Parties: Slumber Parties

A slumber party (also sleep-over or pajama party) is a party in which a group of children or teenagers, usually girls, all sleep at one person’s house. Because everyone sleeps in the same room, they usually continue talking and laughing even when it is very late.
Common activities include playing board games or video games, having pillow fights, watching movies, midnight feasts, playing party games such as Truth or Dare?, light as a feather, stiff as a board, and spin the bottle, building forts out of pillows and blankets, or, for girls, having a "spa night", in which girls polish their nails and toes and put on face masks.

Types of Parties: Braai

A braai is an outdoor party with food that is cooked outdoors; a barbecue.

A braai is also a metal frame over a fire, used for cooking food outdoors.

Types of Parties: BYOB

BYOB is the abbreviation for Bring Your Own Bottle (or Bring Your Own Booze= alcoholic drink) and is written on a party invitation to ask guests to bring an alcoholic drink with them. In Australia, this expression is also used to mean a restaurant where customers can bring their own alcohol:
Is it a BYOB?