ub;le

Utter bollocks;like everything - The UK definition
Utter bullshit;like evrything - The US definition

a) Used as a catch-all response when something isn't making sense, or has spun off in a pointless direction. Frequently used as a response to baffling corporate decisions

b) Used as a warning or precursor to making a suggestion or submitting an idea

In either use of the term, it is generally being used in a cynical way to describe the pointlessness of a situation, idea or action, or its potential to be so.

Example for a)
Person 1: "Have you seen what management now want us to do each week?"
Person 2 "Yeah, ub;le"

Examples for b)
When suggesting a new idea: "ub;le, but have we tried to do it this way ....."
When making a comment: "I think the point of that artwork is to challenge the senses. I dunno ub;le?"