noun
post-vacation sluggishness; out of it after time off
Describes the mental fog, lack of motivation, or difficulty readjusting to work or daily routine after a holiday or break.
正月休み明けは休みボケで仕事が手につかない。
After the New Year break, I can't get into work because of post-vacation sluggishness.
長期休暇の後は休みボケになりやすい。
It's easy to feel out of it after a long vacation.