locked in
focused, intense
the one-line answer
Fully focused. Committed and not distracted by anything.
Locked in means completely focused and committed. No distractions. Nothing else matters. Used admiringly for someone who is grinding or focused on a task. Became a major TikTok trend with people showing themselves working or studying with the caption 'locked in.'.
mainstream
Your coworker might use this word.
01 / in the wild
hear it move.
focus
phone off, no social media, locked in for this exam.
Fully focused on studying with no distractions.