1. n. someone who posts slutty or provocative questions on the question answer website, formspring. Usually under the protection of the anonymous question option which hides their username and identity from the person they are asking.
2. n. someone (usually a girl) who floods another person's formspring with compliments because they have a crush or infatuation on the person.
Q: damn baby i'd like to ridee you to the ground
A: Ugh, these damn formsluts never tell me who they are so i can't actually hit that shit