• distbump,
• cistbump,
• vistbump,
• gistbump,
• tistbump,
• ristbump,
• fustbump,
• fjstbump,
• fkstbump,
• fostbump,
• f9stbump,
• f8stbump,
• fiatbump,
• fiztbump,
• fixtbump,
• fidtbump,
• fietbump,
• fiwtbump,
• fisrbump,
• fisfbump

• Fish thump,
• First pump,
• Disc pump,
• fist pump,
• Wrist lump,
• Misspump,
• Frisk Bump,
• Fitz pump,
• Flip pump,
• fist,
• Fist dump,
• Fizz pump,
• bump,
• Fast pump,
• Fish jump.

The adjective form of the word "fistbump" is "fistbumping".

The plural form of the word "fistbump" is "fistbumps".

The singular form of the word "fistbump" is still "fistbump". The word does not change in its singular form, as it represents a specific action or gesture rather than an object.