The German Diving Helmet is a sexual position in which one person inserts his/her head into a female’s vagina.
Gerald: Why does your head smell like fish?
Phil: Tonya let me do a German Diving Helmet last night. What a freak!
Phil: Tonya let me do a German Diving Helmet last night. What a freak!
by Turnipgenocide June 15, 2018
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