It is someone who is called Evan, it means that they are bitchy, rude sluts which have a massive behind and use that to their advantage.
When your fart is so wet and juicy it qualifies as a lardy fart.
Just hit a lardy fart with how juicy it was
Eat a ton of food,drink a load of booze,
< get fat and party >
Come on everybody let's get down and LARDY !!