1. To snap
2. To
go psycho on someone
3. Verb used to concisely describe the following: "And this button-down, Oxford-cloth psycho might just snap, and then stalk from office to office with an Armalite AR-10 carbine gas-powered
semi-automatic
weapon, pumping round after round into colleagues and co-workers. This might be someone you've known for years. Someone very, very close to you."