This has a double meaning depending on how big of a douche bag you really are. The first meaning is, the point at which you decide to unleash the beast as opposed to keeping it caged. This is done without knowing what your date's reaction will be. The second meaning is, when confronted with the possibility of becoming insta-dad, due to lack of trust or your bad luck, close to copulation due to the fact that your retarded ass forgot a rubber.
Dibble: Hey what do you think of my little pee-pee?

Jen: Oh my God its tiny but you know what they say "When in doubt pull it out".

Dibble: I'm gonna jizz but I don't want to contaminate the world with my seed!
Tamara: Well when in doubt pull it out i guess?
by big kev 79 July 22, 2011
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When in a state of herb-educed relaxation, it is common practice to reacquaint oneself with personal belongings in their domain. If such items are misplaced, or thought to be lost, the subject becomes filled with regrettable doubt. Following this doubtful episode, the said person starts to feel confused and in a state of desperation, with commitment to discover where their missing belonging has gone. This, can also be known as "pranging" or "to prang out".
"Wheres my pillow? Seriously guys... have you got it?... Sit up a sec, are you sitting on it? Ahh man, prang-a-lang... I REALLY WANT MY PILLOW"

"Dude it's on your neck"

"...Ah!"

- When in doubt, prang out.
by Kocane January 23, 2011
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When in a state of herb-educed relaxation, it is common practice to reacquaint oneself with personal belongings in their domain. If such items are misplaced, or thought to be lost, the subject becomes filled with regrettable doubt. Following this doubtful episode, the said person starts to feel confused and in a state of desperation, with commitment to discover where their missing belonging has gone. This, can also be known as "pranging" or "to prang out".
"Wheres my pillow? Seriously guys... have you got it?... Sit up a sec, are you sitting on it? Ahh man, prang-a-lang... I REALLY WANT MY PILLOW"

"Dude it's on your neck"

"...Ah!"

- When in doubt, prang out.
by enak1 December 25, 2011
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It is to pull out when one is in doubt of a current situation. Contrary to popular belief this was developed by a matric student in 2017.
Man my pull out game is strong. He told me: when in doubt, pull out
by koevoetlol November 15, 2017
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