common as bums

Adjective

 * 1)  Very common or mundane (in various senses).

Usage notes
In American usage the simile generally appears in a full form "as common as bums" followed by a location specifier (e.g. "at a free barbecue / at a soup kitchen / in L.A."). The exclusive use of the short form in Australia may be explained by the fact that in Australian English the sense ", " for is relatively rare, whereas the primary meaning "" requires no further specification, since this type of "bum" is self-evidently very common.