The ancestor to both the gas mask and modern scuba diving gear.
I've never tried a diving helmet. But yes I've tried a gas mask.
by Sexydimma June 27, 2022
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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!
by Turnipgenocide June 12, 2018
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The act of inserting one's penile helmet or the helmet of one's penis into the vaginal canal of a woman
Bobby and Gina decided it was a great time to go helmet diving.
by JGammizle January 31, 2011
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The diving helmet would have looked like a combination of a gas mask and a scuba diving mask.
by Sexydimma June 2, 2022
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