Slackly.

To slacken. / (obsolete) To mitigate; to reduce the strength of. / To lose cohesion or solidity by a chemical combination with water; to slake.

(rail transport) A temporary speed restriction where track maintenance or engineering work is being carried out at a particular place.

(countable) A valley, or small, shallow dell.

(mining) Small coal; coal dust.

A dynasty in 13th-century India, founded by a Turkish ex-slave.

(basketball) An impressively forceful dunk. / (colloquial, idiomatic) A task expected to present no difficulty, a piece of cake.

To perform a slam dunk.

One who procrastinates or is lazy. / A person lacking a sense of direction in life; an underachiever. / A member of a certain 1990s subculture associated with Generation X.

A cant used by Cockneys in which a word or phrase is replaced by a rhyming word or phrase, this word or phrase then often being abbreviated to its first syllable or syllables, or its first word. The word chosen as the rhyme often shares attributes of the word that it replaces.