The term 'move slowly (along)' can be expressed in three different ways using the crossword solutions POKE, INCH, and CHUG. POKE is a verb meaning to prod or push gently, usually with a finger or pointed object. INCH is a unit of length equal to one twelfth of a foot, and it can also be used as a verb meaning to move slowly forward. CHUG is a verb meaning to move slowly and heavily, usually referring to the sound of an engine.