n1. (Animals) AustralandIrish an unwelcome newcomer or stranger
blow′-in`
adj. (of a piece of advertising) inserted in but not attached to a magazine or newspaper: blow-in cards.
Blow-in
Blow-in
Method of introducing loose fiberglass, cellulose, or mineral wool to framing cavities or attic space, typically using a machine with an attached hose.