Abstract: Lexical pragmatics, as a newly-emerged sub-branch of pragmatics, establishes the transformation processes of lexical meanings as its research target and is gradually receiving more and more intense attention across the academic circle. Lexical pragmatics postulates four novel judgments towards metaphor: 1) listeners’ effectively eliciting meanings requires discourse owning literal truthfulness, which renders metaphor a loose talk; 2) ad hoc novel concepts can trace back to explanation in agreement both with speakers’ intentions and listeners’ capability and preference by observing relevance orientation regularity. 3) compared with encoded concepts, ad hoc concepts involve moderate semantic broadening, narrowing or both; 4) explicatures and implicatures enclosed in metaphor are more informative and convey collaboratively weak communicative intentions. The explanation panel manifests more deductive and properly arranged, and thus should be acknowledged as suggestive for dominant cognitive linguistics probe.