look up any word, like smh:
to deficate on a glass surface or coffee table whilst a women is underneath licking the glass.
he did a superb belgium biscuit on that coffee table.i did enjoy it.
by fatblokekeith November 19, 2007
when a person is anally penetrated and then blows the penis directly after it has entered their back passage
i gave that bird a nice belgium biscuit, she loved it :P

hell no, im not sucking that, i don't want a belgium biscuit!
by why-do-i-know-this-shit September 12, 2008