Chillen with the billen means your chilling at home watching YouTube or drawing, in other words your doing absolutely nothing. If your talking to a friend about it means your just doing the same as normal. Another way to say it, is chillen with THE billen.
an extrememly delicious frozen drink sold at Cumberland Farms for 69 cents plus tax, so 72 cents. Comes in many delictable flavors including coke, cherry, clue raspberry, sour apple, leomonade, and grape.