Half crack 

A medical anomaly when someone's crack only extends halfway up his or her butt.

Omg, Emily! Turn around and look in the mirror. You've got a half crack!

Half crack by BooVeAYYE July 24, 2016

Half back crack 

An extremely unnaturally long ass crack

Look at her half back crack.

Half back crack by Sallysaidso January 16, 2009

half cracked

condition where a person is not yet drunk, but still under the influence of alcohol.

Friend was half cracked while at the beach, glazing at the sun

half cracked by naughtylilfetus June 6, 2018

halftrack

A cross between a tank and a truck. Most halftracks consist of a large truck frame with two front wheels, but with the rear wheels replaced with tank treads. Halftracks appeared in small numbers at the end of WWI, but found widespread use during the Second World War on both the allied and axis sides, mostly as armored personnel carriers. Some countries still use upgraded surplus versions of these vintage halftracks.

The American M3 series is a good example of a halftrack.

halftrack by atomicpacman July 6, 2011

halftrack

a lightly armored military vehicle having tracks in the rear for power and conventional wheels in front for steering.

this thing owns you, kiddies.

halftrack by folken February 5, 2003

Halftrack Slip 

A crazy funky dance created by Amos Halftrack. Was first done on April 10, 2011. In order to prepare for this dance, punch or some other liquid must be spilled on the ground so as to make the other person slip in it. Thus creating the image of dancing although it is not. It often ends with the person slamming down onto their bottom with a loud WHOMP sound.

Papa Amos: Hey, wanna dance? There's 'Why Don't We Just Dance' is playing.

Marty: Well, of course. We're gonna have to do the Halftrack Slip here. I'll go get that punch bowl and dump it on the ground. (she takes the punch bowl and pours it on the floor)

Papa Amos: Well, here goes nothing. (He slips and crashes into Sergeant Snorkel who starts laughing at him)

Orville: What is this? This dance looks fun!

Papa Amos: Its the Halftrack Slip. Its the latest craze here at Camp Swampy. Why don't you try it? (he hands Sgt. Snorkel a cup of punch which Sgt. Snorkel pours on the floor)

Stainy: Sweet heavenly angels! This dance is going to slip us all the way back to heaven!

Marty: You're right! We'll be slipping our way through this old swamp until we called up to the Pearly Gates. (she starts rotfl)

Papa Amos: This is more than the Halftrack Slip. Its also the Camp Swampy Stomp!

Halftrack Slip by Dusty's Baby Powder April 28, 2011

Halftrackeen 

A holiday celebrated at Camp Swampy, NC by the soldiers there. Very similar to Halloween, but is a funny day when Amos Halftrack falls sick. When asked to wear masks the staff wear Halloween masks as opposed to surgical masks. Amos does not find this amusing and his wife, Marty, even said it looks silly. The first Halftrackeen was on May 22, 2011 after a flu epidemic had broken out. It is so silly but be careful, you may get sick!

Amos: Oh no, another cold epidemic. I bet its Halftrackeen.

Marty: Yeah, you're right. Its a big one. The whole base must be in on it.

Amos: (puts on a surgical mask) I'll go see what's up with all this. Do you want to come?

Marty: No, I got a date with Bridie. We're going to play some tennis.

Amos: Okay. See you later, sweetie! (he throws her a kiss through the mask. He gets to the office and Sheila is in there)

Sheila: Boo! Its Halftrackeen so I thought I would wear my devil mask. Cute, huh?

Amos: Silly! This is not supposed to be fun. This is serious.

Sheila: Oh, loosen up General. If you get sick we can always take you to Stainy. He knows what to do.

Amos: (laughs) He'll probably just rub us with some Mary Mud and pray the Hail Mary over us. Halftrackeen sure is fun! Even if we do get a little green.

Halftrackeen by Dusty's Baby Powder October 27, 2011