Wiktionary
n. A hostile alien from outer space.
Wikipedia
Space Invader is the sixth solo album by former Kiss guitarist Ace Frehley, released on August 19, 2014 via eOne Music. It is his first album of new studio material since 2009's Anomaly. Frehley self-produced the album, which was recorded at The Creation Lab in Turlock, California. Upon release, the album reached No. 9 on the Billboard 200 albums chart, the only time a solo album from a past or current Kiss member has ever attained a US top 10 album position.
Usage examples of "space invader".
Some space invader is invading my inner space, some fucking joker.
Hard to believe that the gentleman with the candles under the glass bell actually wore that thing that looks like a sewer rat's head or a space invader's helmet, just to avoid irritating his eyes.
Sugar looked for all the world like some kind of Star Trek space invader with a ray gun.
The names they called him were cycling through his head -- disfunk, crack baby, space invader, skid kid .
The second - an Avis eight-sealer Renault nominally on hire to the Faculty of Experimental Mythology skittles team - left Glastonbury, joined the M5 northbound to Bristol and the Midlands, made good time and stopped at the Michael Wood service station for a cup of tea and a go on the Space Invader machines in the front lobby.