Yeah, didn't think it's not common...
1. http://www.urbandictionary.com/define.php?term=smurgle
2. http://daveola.com/Zoo/Cat_Codes.html (search for "smurgle")
3. http://www.taglinesgalore.com/tags/c.html (...)
4. http://www.angelfire.com/mt/yowie/pages/customs.htm:
«When the cat "kneads" with its paws and suckles at something, it is considered smurgling. Smurgling may be a sign that the cat was not weaned properly»
If I am lucky and get another chance to propose a word, that'll be a common word present in every dictionary.