: A character charges into battle without any thought of the plan made beforehand.
- Straight: Private Bob L. Jenkins, an inexperienced new recruit, ignores the well-thought out plan of attack and assaults the entire enemy army by himself.
- Bob attacks the entire enemy army armed only with a butter knife, forgetting the combined arms assault that's due to start within minutes.
- Not only does Bob not stick to the plan, nobody planned for Bob to be present.
- Downplayed: Bob organizes a group of soldiers to infiltrate the enemy base, but doesn't recognize the fact that none of the soldiers are specialists in infiltration or stealth.
- Bob is impatient.
- Bob missed out on some details of the plan through no fault of his own and nobody took the time to inform him of what he missed, assuming someone else would.
- Bob is actually Bad Ass enough for "Attack! Attack! Attack!" to be a valid strategy"; they really never needed the plan.
- Bob follows the plan to the letter.
- Everyone but Bob realizes The Plan is not going to work and wildly charges at the enemy. Bob's attempts to make sure the plan is fulfilled gets everyone killed.
- Subverted: Bob constantly talks about how he can't wait to fight, putting him at odds with Alice. When the time for the battle arrives, Bob decides that it's a better idea to stick to the plan.
- Double Subverted: Bob constantly talks about how he can't wait to fight, putting him at odds with Alice. When the time for the battle arrives, Bob decides that it's a better idea to stick to the plan. A minute later, he decides that waiting is boring and charges ahead anyway.
- Parodied: Bob charges the enemy and his friends expect him to be killed, turning away in horror. They open their eyes when they hear the enemy retreating in fear of the single soldier attacking them.
- Zig Zagged: Bob rushes the enemy by himself without fear of death or any kind of plan, but this is a distraction planned out by his superiors who use his charge to get the drop on the enemy. However, Bob did not know about this plan and the 'distraction thing' was Xanatos Speed Chess on the part of his superiors.
- Averted: Bob is a well-trained soldier who doesn't want to die and as a result, spends most of the battle crouched behind cover.
- The audience expects Bob to charge the enemy army, so the writers make him do it.
- The results of the battle were decided by fan voting even though the enemy's forces are outclassed and their general's leadership skill is sub par. The author thought this trope would be the best way to justify Alice losing.
- Lampshaded: "He just had to run in there and get himself killed, didn't he?"
- Invoked: Alice encourages Bob's belief in the pointlessness of keeping to the plan, hoping it will make him attack early and get him killed.
- Exploited: General Alice is Genre Savvy and creates a battle plan that takes into account the fact that Bob will charge blindly ahead with no regard for any plan she makes.
- Defied: Someone notices that Bob is about to attack ahead of schedule and knocks him out to stop him.
- Discussed: "Bob, stop being such a Leeroy, you're gonna mess everything up."
- Conversed: "I just know he's gonna ruin the plan."
- Deconstructed: Bob charges forth, ruining the plan, and gets quickly slaughtered. Despite this, a victory is still managed, albeit with massive loss of life.
- Reconstructed: Bob is a distraction. By running forward and screaming his head off, he attracts attention away from the main force. If the enemy sees through this ploy and ignores him, Bob has orders to accomplish some other objective. Thanks to his charging force, his team's objective is fulfilled but Bob is still "stupid as hell" for volunteering for such an assignment.
"All right, chums, let's go back to LEEEEEEEROOOOOOOOOOOOOOOOY! JENNNNNNNNNNNKIIIIIIINS