an emoticon that expresses extreme excitement above and beyond what any smilely face could convey. The symbol is a representation of the male genitalia in a state of full expression when viewed sideways.
In a chat box;
Dude1234: Hey! How's things?
Chick1234: Bored. Need a chubby. You available?
Dude1234: \3. You Bet!
The minimalist value of pi (unless you need a far better approximation to ensuring that someone lands safely on a distant planet, or that a computer system is in good working conditions).