It is when a penile extension is so miniscule it resembles a button of meat.
Jarrod W.'s meat button is so small he could have sex with a bud light long neck and not even touch the sides.
by Teabagette April 29, 2005
A man's erect nipples.
After jogging down the junk food aisle at the 7-11, Andrew's meat buttons were so chafed they were bleeding.
by Phillip Enis January 22, 2013