spim

or spIM, SPIM

[spim]
verb (used with object), spimmed, spim·ming.
  1. to send spam to by means of instant messsaging.
Related formsspim·mer, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for spimming

spim

noun
  1. unsolicited commercial communications received on a computer via an instant-messaging system

Word Origin for spim

from sp (am) + i (nstant) m (essaging)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012