There are a few quotes from this movie that are actually unforgettable! (either because its funny, cool or just plain stooopid!)...
Sam Witwicky: Bee, I want to talk to you about the college thing, okay?
Bumblebee: [does a dance] "I'm so excited, / And I just can't hide it..."
Sam Witwicky: Hey! I'm not taking you with me! [Bumblebee is downcast]
Mikaela Banes: I'm gonna wait outside... [goes outside and starts to strip]
Sam Witwicky: Bumblebee, just hear me out okay. You know freshmen aren't allowed to have cars, that's all it is. It is best for both of us. I know it doesn't sound like it but... you're an Autobot, you shouldn't be living in my dad's garage. I mean you're suffocating in here. Hey will you look at me please? Hey, come on big guy...
Sam Witwicky: Look, the guardian thing is done, okay? You did your job. It's over with. You've gotta be something else, you've got have a bigger purpose then just me, Bee! I can't be the end all deal in your life!
Bumblebee: "What is"... "your"... "purpose"... Sam?
Sam Witwicky: I don't know. I wanna... I wanna be normal, I want to go to college. Everybody has this, and I should be able to experience this. And I can't do that with you. [Bumblebee bursts into tears; literally, with his windscreen cleaners malfunctioning]
Sam Witwicky: Come on... it's not the last time I'm gonna see you, you know? Come on, don't do that... Bee, you're killing me... [Bee angrily gesticulates to Sam to go away]
Sam Witwicky: You'll always be my first car man. I love you. [leaves the garage]
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Agent Simmons: What you are about to see is top secret. Do not tell my mother.
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Sam Witwicky: Can you read this?
Skids: Read? Unh uh.
Mudflap: We don't - we don't really do much reading.
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Wheelie: Is that the best you got, huh? Is that best you can do?
Mikaela Banes: What are you doing here, you little freak? [Mikeala burns his left eye off with a soldering iron]
Wheelie: That's my eye, you crazy bitch! Easy Warrior Goddess, I'm just a little salvage scrap drone.
Mikaela Banes: Then I'm your worst nightmare.
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[Mikaela's dog looks at Wheelie]
Wheelie: What are you looking at, Slobberpuss?
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Mudflap: It's an ass-whoopin', it's *supposed* to hurt!
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Jetfire: Itchy wretched rust in my aft! [scratches himself]
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And i also like the scene where major lennox will ask the galloway guy to bail out using the parachute... galloway will be like " bail out??...bail out??...are u serious??..." and galloway will actually pull the parachute before he jumped out and lennox will say "not now you dumbass!"...