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50.
1. a code word used between 2 or more people in a situation with a large crowd, such as a party, to express awkwardness. usually the crowd members get confused and/or angry because they do not understand what the term is referring to.

2. a code word used between 2 or more people in an awkward or annoying situation that they had predicted earlier, that ended up happening.

3. just an awkward situation in general; a word used to break the awkwardness.
1. Kevin: *taking his pants off at a party" "hey everyone! look at me !"
Sydney: "oh god kevin ! pineapple !"
Harry: "pineapple all the way..."
Deena: "ew ! pineapple !!"

2. *earlier*
Loqueesha: "Alicia's totally gonna flirt with every guy at the party, even though she has a boyfriend !"
Monique: " dayum gurll.. ur right.."

*later, at party"
Alicia: *cuddling with "nick" *
Nick: "alicia, chads your boyfriend.. so get offa me"
Alicia: *speechless*
Loqueesha: "pineapple..."
Monique: "werdd..!"

3. Oscar: "guys... i just thought i should tell you that i jack off to pictures of pauls mom."
Paul: "what the fuck ??"
Gary: "pineapple ."
by kittykaateatyou July 10, 2011
 
51.
someone who claims to be "hard as fuck" but is just a huge softie on the inside. (hard on the outside, mushy on the inside)
i used to be hard as fuck, but this girl turned me into a huge pineapple
by maddawg0888 March 24, 2011
 
52.
A sweet, yellow fruit that also sweetens the male sex hormone semen, rendering the taster of that delicious juice surprisingly joyous.
I'm having sex with my girlfriend tonight. Any tips?

Eat some pineapple.
by dantheincredible June 22, 2010
 
53.
The rarest kind of dank, one of the best, grown in Bedford New York, tastes like pineapple
Hey bro those bong hits with that pineapple last night were dank.
by farmejones June 22, 2010
 
54.
a code word used to ask a friend if they would fuck the girl he points to. it is replyed with either "slice it" for yes or "squash it" for no
(chaka)hey martin "pineapple" that chick in the yellow
(martin)dude "slice it" chick got ass for days
(chaka) what her friend, pineapple?
(martin) eww "squash it", she has no body what so ever
(chaka) lmao
by monkeyjutsu July 06, 2009
 
55.
preferably a girl.
brunette on the outside, blonde on the inside
"Wow, what a pineapple"
by ♥~to.be.loved~♥ February 14, 2009
 
56.
1) Any antipersonnel fragmentation grenade, but most commonly the antipersonnel fragmentation hand grenade (so called because the grooves on the metal casing are reminiscent of the skin of a pineapple)

2) To kill someone or destroy something with an AP frag grenade. Related terms include frag (to kill/destroy, usually with an explosive device of some kind) and ghost (to kill in general).
1)

Nod Rifleman: ENGAGING GDI FORCES!
GDI Grenadier: Eat pineapple, Nod boy! *primes and throws hand grenade*

2) Looks like Captain Parker pineappled those SAM sites.
by Macavity August 24, 2005