Going OUT ON a LIMB is an idiom that means to take a RISK or chance. It is often used when someone is making a bold statement or taking a big RISK. The crossword solutions for the term GO OUT ON A LIMB are ROOST (5 letters) and RISK (4 letters). ROOST is a noun that means a perch or support, while RISK is a noun that means a potential danger or harm. Together, these two words can be used to describe the phrase GO OUT ON A LIMB, which is to take a chance or RISK.