walk the plank

〔強制されて〕地位［役職］から降ろされる◆【語源】海賊の処刑方法として、舷側から突き出た板（plank）の上を目隠しで歩かせたことから。〔英辞郎〕

make someone walk the plank　（人）に詰め腹を切らせる

Tim: Well, you’ve got a little scratch on your cornea, your gonna have to wear a patch for a couple of days.
Monica: Like a pirate?!
Tim: If that helps you.
Monica: Umm, so how long have you been working with your dad? (He looks at her) Come on, one of us had to mention him.
Tim: I moved back here a couple of months ago.
Monica: Oh. Big family dinner tonight?
Tim: Uh. (He holds up a brown lunch bag.)
Monica: No way!
Tim: I was gonna have Thanksgiving at my girlfriend’s.
Monica: (disappointed) Oh.
Tim: But we broke up.
Monica: (happy) Oh.
Tim: She-she wasn’t ready for a serious commitment.
Monica: (sympathetic) Oh. (in a pirate’s voice) So you made her walk the plank? Aye, matie?
Tim: You’re not wearing the patch yet.
Monica: I know.

– “FRIENDS” Season 4 Episode 08