This is a slang
word for penis. Term often
used when
boys are acting foolish. Commonly used when one is describing his little friend.
(While amongst
friends, Matt yells "Smack Your Birdy Pie" and
slaps the crotch of his jeans.)
(Bobby sometimes entertains classmates with the use of the
word Birdy Pie.)
(One certain kid always played with his Birdy Pie in the back of the bus while on field trips.)