Fat leak is a term used to describe a bulge of bare flesh that the owners clothes do not (but should) cover. Fat leaks often occur at the join between the upper and lower garments. Remember, a fat leak is only when the fat appears to seep out as uncovered flesh and can't be used to describe covered bulges. This is a derogatory term and it will not work as a term of endearment.
by Professor of new English June 30, 2005
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