1. [late 19C+] the very light growth of hair on the face of a boy who is on the verge of needing to shave.
2. attrib. use of sense 1.
3. [1940s+] (Aus.) empty talk, nonsense.
4. [1990s+] pubic hair.
5. [2000s] a term of address, whether abuse or affection.
[2000s] sparse, thin.