freeloader; scrounger; sponger
Colloquial term for someone who habitually gets money, food, or favors from others without giving anything back.
He's a freeloader who always drinks on other people's dime.
I got sponged off by a mooch and my wallet ended up empty.
Rare kanji spelling; 集り is not standard for this meaning and may be confused with あつまり.
Compound of たかり (continuative form of たかる, 'to sponge off') and 屋 (suffix for a person with a certain trait or occupation).