lock in

What it means

To focus intensely, commit fully, and get serious about a task or goal, blocking out distractions. Telling someone to "lock in" is urging them to concentrate and grind, whether on studying, a game, or work.

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Examples

• Finals week, time to lock in and study.
• We're down by ten, everybody needs to lock in.
• I locked in for three hours and finished the whole project.
• Stop scrolling and lock in, the deadline's tomorrow.

Where it comes from

Comes from gaming and sports (locking in a selection or focus); it surged as motivational Gen-Z slang on TikTok and Twitch around 2022-2023, often tied to grind and self-improvement culture.

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