embrace the suck - what is embrace the suck in military

Embrace the Suck

When the task you’re about to/are currently undertaking is going to suck a bag of baby dicks but someone has to do it, and that sorry asshole is you, so you just have to accept it and keep pushing.

A sewage line burst and we need a working party to clean up all the shit water. You got volunteered, so embrace the suck.