In project management, float or slack is the amount of time that a task in a project network can be delayed without causing a delay to:

An activity that has a total float equal to zero is said to be a 'critical activity', which means that a delay in the finish time of this activity will cause the entire project to be delayed

"A spike solution is a prototype, working code that explores a possibility or solves key functionality of a specific project requirement, thus reducing the overall risk associated with the project."

A leetspeak expression, used to express joy, particularly that felt during success or victory. Originated within the online gaming community, it was chosen as the 2007 Word of the Year in a poll taken by Merriam-Webster's Web site. It has similar usage as "Hooray".

Its is the Mozilla way of saying in a humorous way that no bugs were found. When you search in Mozilla bug database (BugZilla), and if, no records were found, instead of returning "0 bugs found", it returns "Zarro Boogs". It is a facetious metastatement about the state of software in development. Note that the response "Zarro Boogs" itself is a misspelling of "Zero Bugs", which indicates that, though no bugs were found, the software is likely to contain bugs that have not been identified yet.

Stovepipes are “systems procured and developed to solve a specific problem, characterized by a limited focus and functionality, and containing data that cannot be easily shared with other systems.” (definition by DOE 1999). Stovepipe system is a legacy system that is an assemblage of inter-related elements that are so tightly bound together that the individual elements cannot be differentiated, upgraded or refactored.

Ubiquitous language is a common language used by both the Domain experts/Business analysts and the Developers to easily communicate across the whole team while avoiding any miscommunication. Ubiquitous language is the heart of Domain Driven Design (DDD). It is a simple domain specific language and highly readable, used in all forms of communications including the code, diagrams, design documents, etc. Ubiquitous language should be able to explain all concepts of that domain, and can explain new terms using already understood terms.