The rarely used and last resort tactic when its comes to icebreakers during conversations with females. A Nuclear Icebreaker is when you whip out your dick at the start of a conversation with a woman.

Defined by Pat from Two Best Friends Play - Youtube video "Cryostasis - Matt and Pats shitstorm of scariness" 12:43 minutes in.
Nuclear Icebreaker - When you are talking to a girl and you just take out your dick, because a normal icebreaker is weak.
by Mute 69 October 26, 2012
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