Top Definition
The rectus abdominis muscle (abs) that are hidden under the belly fat and are yet to emerge. They say only 10% of an iceberg can be seen and the rest is under the water; the same applies to the absberg.
Dude #1: Man, don't drink that much, you're gonna lose your 6 pack!
Dude #2: No. I'll just have an absberg.
by The Immortals (Iman & Simon) March 19, 2011
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