The Rice University Neologisms Database

giving praise to someone (“props for your performance”); another way of saying kudos Possibly derived from the original word prop meaning something that gives support and keeps it standing so when someone has an outstanding performance, they receive props, which are like rewards. This could be an example of widening and zero derivation (change from verb to noun). Another way of giving someone praise in more lay terms or informally; similar meaning to original definition of giving someone support or props. Most often heard in hip-hop culture and used in rap songs.