Sports
Wasei-eigo in the Sports category — 3 words that look English but mean something completely different in Japanese.
キャッチボール
kyatchibōru
Playing catch (throwing a ball back and forth); also a metaphor for dialogue/communication ≠ catch ball
ガッツポーズ
gattsupōzu
A triumphant victory pose with clenched, raised fists ≠ guts pose
ナイター
naitā
A night game (sports match played at night, especially baseball) ≠ night game