The best replacement for dirk is dagger.

The best alternatives to dirk are rated as following:
★★★★★  dagger
★★★  lebron
★  pau
★  kg
★  scottie pippen
★  carmelo
  nash
  gasol
  amare
  stiletto

Your alternative for dirk is not listed? Suggest!
Speaking about dirk, one probably shouldn't forget about conan.

Other search terms related to dirk and their ratings are:
★★★★★ conan
★★★ mavericks
You have in mind a companion for dirk and it is not yet here? Propose!



Google Trends

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dirk
dagger
lebron