obstruction; space hog; something that takes up space
Refers to a person or object that is in the way or takes up space unnecessarily, often used in a mildly negative or complaining tone.
This big luggage is just taking up space.
He didn't say anything in the meeting and was just a space filler.
Compound of 場所 (place, space) and 塞ぎ (blocking, from 塞ぐ 'to block').