loose lips shrink dicks 

1. an expression implying that knowing to much about an activity, situation or person tends to discourage one from involving himself with it, often related to sexual encounters

see also zipless fuck

2. a truism

3. a parody of loose lips sink ships

After Elliott told Devin that Kittyboot's friend from Philly had roast beef curtains, Devin replied, "Buddy, thanks for warning me... loose lips shrink dicks."

loose lips shrink dicks by Elliott July 18, 2005