A special education kid (usually a girl) who is the town bicycle for all the other special ed kids.Similar to a prostitot, but with mental disabilitites.
amber: why does that tard get more dick than me?
trent: i know, she's a hella fatty prostitard!
#1:An individual, who though not actually mentally handicapped, acts out in a manner usually reserved for sextrade workers and the mentally ill. This often occurs after the use of drugs or alcohol, in individuals who otherwise display good judgement or class.
#2: An actual sextrade worker who is incompetent or forgets to bill correctly. (this is does not include pro-bono work).
#1: No "guy" she doesn't usually flag down passing truckers for rides, she just acts like a prosti-tard when she's been drinking.
#2: She's not in love "dude" the prosti-tard just forgot to ask you for money.