Top definition
Australian brand of Speedo clone swimwear.

Mainly constructed of nylon, Aussiebums are synonymous with the Australian surf patrol movement and, by extension, with the gay scene. Distinguishable from regular Speedos through heavy use of brand name on the rear.

The website is notably homoerotic.
"Sweetie, those Aussiebums leave NOTHING to the imagination."
by wintermute March 08, 2004
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