It can either be eating or describe what is being eaten. If something is shlumpin than it is very desirable and delusions. If you are shlumpin it just means you are eating. You can also use the word as shlump also in reference to eating.
Dude we really need to go get some shlump. Man those ribs were so shlumpin.
by Phlop June 24, 2007
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