Quick Scoop

Gimmighoul Coins are mainly used to evolve Gimmighoul into Gholdengo. You need 999 coins to do it, so the usual move is to keep collecting until you hit that amount.

What to do with them

  • Save them for evolution. The coins are not a general-purpose currency; they exist for one main purpose: evolving Gimmighoul into Gholdengo.
  • Keep farming more if needed. Coins can come from roaming Gimmighoul, chest-form Gimmighoul, and in Pokémon GO from golden PokéStops with Golden Lure Modules or by adventuring with Gimmighoul as your buddy.
  • Don’t worry about extras. Community reports say you can carry more than 999, and extra coins still remain after evolving.

Simple rule

If you have coins already, the safest answer is: hold onto them until you reach 999, then evolve Gimmighoul.

In Pokémon GO

In Pokémon GO, coins are tied to catching Gimmighoul, spinning golden PokéStops with Golden Lures, and walking with Gimmighoul as a buddy. A community guide also notes that Golden Lure spins can award coins, though the exact amount varies.

If you want, I can also give you the fastest way to farm Gimmighoul Coins.