You have a funny relation with your sister-in-law then you can send her a funny birthday wishes to her and best quotes or wishes. But be careful in choosing the birthday wish as its a delicate relation. Also, make sure that your sister-in-law would not mind these jokes.
birthday wishes to sister in law funny
Happy birthday quotes for sister in law funny
These are the words that would make your sister-in-law happy and give her a reason to smile. lilylisto provides you best funny birthday wishes for elder and younger sister birthday. Moreover you can also find some religious, inspirational , emotional words as well as funny images for sister birthday.