Trial Balloon
Trial and Error
Tribal Knowledge
Trimming The Fat
Triple Booked
Triple Witching
Truck Load
True North
Trump Card
Trust But Verify
Trusted Advisor
Turn Around
Turnaround Time
Tweeps
Twitterverse
Two Pizza Rule
Two Week Notice
UML
UML Diagram
URA
UX
Uberization
Uncharted Territory
Under-Index
Underpaid