1 definition by Susana Avila (MK)

Top Definition
A person who "lumps" you into their email distribution lists when sending jokes and other viral email messages. In most cases you barely know the person who sends you the email or they are just a friend of a friend of a friend.
Lumpers are poeple who "lump" you into their distribution list when sending jokes and other viral email.
by Susana Avila (MK) February 06, 2009

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