* "[I am] A warrior. Of the...Jarhead clan."
** Shortly afterwards, from Quaritch: "''Jarhead clan?'' And it worked?"
* '''Quaritch:''' [[spoiler:(after destroying the Home Tree) Nice work, boys; first round's on me.]]
** More Quaritch, when he realizes that the Na'vi are attacking his gunship with [[RockBeatsLaser bows and arrows.]]
-->'''Quaritch:''' Oh you gotta be ''kidding'' me.
* '''Jake:''' Neytiri calls me "skxawng". It means "moron".
* When asked how many hours he'd logged in the piloting simulator: "Zip, but I read a manual."
** Which is a callback to a similar [=CMoF=] in ''Film/{{Aliens}}'':
-->'''Ripley''': How many drops is this for you, lieutenant?
-->'''Gorman''': Thirty eight...simulated.
-->'''Vasquez''': How many ''combat'' drops?
-->'''Gorman''': Uh, two. Including this one.
-->'''Drake''': [[OhCrap Shit.]]
-->'''Hudson''': Oh, man...
** Also:
-->'''Grace:''' "How much lab experience do you have?"
-->'''Jake:''' "I dissected a frog once."
* Grace's first line.
--> '''Grace:''' [exiting avatar control bed, exhausted] Where's my goddamn cigarette?
* When first controlling his avatar, Jake's tail surprises him when he notices it over his shoulder. When he turns around to look for his tail, it knocks medical supplies off a table.
* This exchange between Grace and Sully while the latter is first entering his chamber:
---> '''Grace:''' "Just relax and let your mind go blank. That shouldn't be too hard for you."
---> '''Sully:''' "Kiss the darkest part of my lily-white [[CurseCutShort (gets cut off)]]."
* For a serious character, Grace gets more of these than you'd expect:
---> '''Tsu'tey:''' "You mated with this woman?!"
---> '''Grace:''' "[[PrecisionFStrike Oh,]] ''[[PrecisionFStrike shit.]]''"
** If you know any scientists, this line is hilarious. Grace is carried, mortally wounded and half-conscious, to the Tree of Souls that she had been wanting to research for years:
----> '''Grace:''' I need to get some samples...
** Grace's indignation at Jake not being experienced anywhere in science can be hilarious.
---->'''Grace:''' They're just pissing on us without even giving us the courtesy of calling it rain.
* ''Crowning'' Moment of Funny? Reportedly, Sam Worthington, Jake's actor, emailed EntertainmentWeekly with his own ideas for a sequel:
--->'''Sam Worthington''': Jake should have abused his avatar and be fat and unfit and demand Neytiri to get him a beer.*
* A hilarious moment from the deleted scenes of the collector's edition: Jake wakes up from his Avatar and goes looking for the others (Grace is outside) and he turns a corner, and Trudy and Norm appear to be in the middle of a lovemaking session. Then Jake's voice over crowns the funny "Norm's attitude has improved lately."
* An even more hilarious moment from the deleted scenes occurs during the meal at the campfire:
--->'''Jake:''' These rock. What are they?
--->'''Ney'tiri:''' Teylu.
--->'''Jake:''' Teylu?
--->'''Neytiri:''' You call [it] beetle larvae.
--->{{Beat}}
--->'''Jake:''' Well, that's some damn fine Teylu. Just like Grandma's Teylu.
* The Sturmbeest Hunt had this gem of an exchange:
---> '''Jake:''' Hell yeah!
---> '''Neytiri:''' (who has no idea what it means) Hell yeah!
* Parker Selfridge's reaction to being lectured by Grace (presumably for the umpteenth time) about having just bulldozed something holy is ''hilarious''.
-->'''Grace:''' Those trees were sacred to the Omaticaya in a way you can't imagine.
-->'''Parker:''' Oh, you know what, you throw a ''stick in the air'' around here, it's gonna land on some sacred fern for Christ's sake!
** Likewise, Parkers retort to Graces lecture after bulldozing the Tree of Voices
-->'''Grace:''' That's more connections than the human brain. You get it? It's a network a global network. And the Na'vi can access it they can upload and download data memories at sites like the one you just destroyed.
-->'''Parker:''' What the HELL have you people been smoking out there? They're just goddamn trees!
* Jake convincing the Na'vi to teach him.
-->'''Mo'at:''' It is hard to fill a cup that is already full.
-->'''Jake:''' [[DumbMuscle My cup is empty.]] Trust me.
* When Trudy first shoots the Dragon Gunship she nonchalantly says, "Oops."
* And moments later she tops that with "You're not the only one with a gun bitch."