Top definition
1. the act of sassing on the side
2. Back-Sassing a little bit to the left or right, never to the front
3. the act of getting guidos annoyed
4. the act of talking about things that don't exist, which really happened
1. Stop side-sassing me guido
2. You should have side-sassed him
by Side-sassin ass April 12, 2010
Happy St. Patties Day!