Muckulufuck

It is a very special dog's way to show happiness, invented by Mucki the Great in 21th century.
Shortly about the Muckulufuck (u in an ending -fUck here originally pronounced as -oo- in a word bOObs):
Rubbing the genitals on everything that moves or doesn't move (it's not really important).
.
/I'm just a Muckuluck
Everywhere I fuck/
-Mucki