To complain beyond reason. Any reference to;
Whining, Bitching, Complaining, Nagging, or PMS.

The act of wrapping your legs around someone like a koala would hug a tree. Especially while cuddling.

To engage in a cuddling position that is similar in design to spooning, with both partners maintaining chest-on-back contact while facing the same direction and laying on their sides, but with the distinguishing characteristic that the smaller partner is positioned on the back of the larger partner with the smaller partner's arms wrapped somewhere around the larger partner's body. The position resembles a smaller koala holding onto the back of another koala, thus the origin of the word.

There is nothing inherently sexual about engaging in the position, but like all cuddling, it can very easily lead to sexual encounters especially given the ease of access the smaller partner has to the larger partner's goods. Very often however, this style of cuddling satisfyingly follows such encounters.

Hugging someone, and in the process, wrapping your legs around them like a koala hanging from a tree.

To sneak up on someone and jump on their back in a koala like fashion. NOTE - before doing it to another guy make sure both of you are mutually hetero.

When you non-stop cuddle under blankets with someone you like. Men are the eucalyptustrees & women are koalas wrapping their hands over men. "Every koalas dream is to own its own eucalyptus tree."

the act of sitting backwards on the toilet seat and wrapping your arms around the cistern whilst taking a shit, just like a koala hugging a tree