1
chase;pursuit
2
chase scene (in a movie)
3
obsessive fan who follows a celebrity around;groupie
アイドルのコンサート会場に、追っかけのファンがウジャウジャ集まっていた。
At the pop star's concert the fans were swarming around the foot of the stage.
4
in (quick) succession;soon (after)
Other forms
追っ掛け 【おっかけ】