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1. A man's penis that bounces back and forth during an erection and makes silly squeaking noises.

2. A penis with jokes written on it.
1. My silly dick wakes me up every morning.

2. I took a pen to the bathroom to add the punch-line to my silly dick.
by Fart Mcbitch August 20, 2009
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The term to describe a person who is a big ol bitch and an un cultured swine
Paul: wanna get coffee?

Marco: shut up fool you got silly dick
by Sauceboss01 September 28, 2018
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silly dick reffers to a person who is always horny or a sexaholic.
"Gina, your boyfriend is a silly dick. He always looks at my porn. "
by Pistachio June 18, 2004
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