Definition of "phallic"

A little later the phallic explanation of everything came into fashion. The deities were all polite names for the organs and powers of procreation.

1920, Edward Carpenter, Pagan and Christian Creeds, New York: Harcourt, Brace and Co., published 1921, page 10

The natural rhythm of the male is a phallic one of rise and fall, whether it involves towers, stock markets, or whole civilizations.

1981, William Irwin Thompson, The Time Falling Bodies Take to Light: Mythology, Sexuality and the Origins of Culture, London: Rider/Hutchinson & Co., page 128

For many first-time visitors, a common initial impression of the Washington Monument is that it is incredibly phallic.

1993, Joseph Downton, Washington D.C.: An Alternative Guide, page T-221

The incinerator and a big smoke stack / It's a phallic symbol and it makes me laugh

2005, Mother Mother (lyrics and music), “Verbatim”