The act of sex. The last of the bases.
Home Run, there aing gonna be a play at home plate.
by A. Nonymous November 15, 2003
A 5-pointed ass.
I drank so much beer I actually slid into that miwlf's home plate.
by Sanias March 19, 2004
n. The ass of a mother/older woman, where the jeans come up to the middle of the back, revealing an odd-shaped buttform.
I don't know if she plays baseball or is just a thief, because it looks like there's a home plate in her slacks.
by Sanias March 17, 2004