A variable whose value is the name of another variable or subroutine. By dereferencing

A method of making input and output efficient by passing one block

Scalar context is sometimes subdivided into Boolean context

There’s also a “don’t care” context (which is dealt with in Camel chapter 2, “Bits and Pieces”, if you care).

Someone like Larry, or one of his peculiar friends. Also refers to the strange prefixes that Perl requires as noun markers on its variables.

Pattern matching

The notion that, with a complete set of simple tools that work well together, you can build almost anything you want. Which is fine if you’re assembling a tricycle, but if you’re building a defranishi [..]

A form of scalar context

A method