From WordNet (r) 2.0 (August 2003) [wn]:
Phallus
n 1: genus of fungi having the cap or pileus hanging free around
the stem [syn: Phallus, genus Phallus]
2: the male organ of copulation (`member' is a euphemism) [syn:
penis, member]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Phallus \Phal"lus\ (f[a^]l"l[u^]s), n.; pl. Phalli. [L., a
phallus (in sense 1), Gr. fallo`s.]
1. The emblem of the generative power in nature, carried in
procession in the Bacchic orgies, or worshiped in various
ways.
[1913 Webster]
2. (Anat.) The penis or clitoris, or the embryonic or
primitive organ from which either may be derived.
[1913 Webster]
3. (Bot.) A genus of fungi which have a fetid and disgusting
odor; the stinkhorn.
[1913 Webster]