sliping

1. move stealthilyExamples: "The ship slipped away in the darkness"Synonyms: slip, steal

2. insert inconspicuously or quickly or quietlyExamples: "He slipped some money into the waiter's hand"Synonyms: slip

3. move obliquely or sideways, usually in an uncontrolled mannerExamples: "the wheels skidded against the sidewalk"Synonyms: skid, slew, slide, slip, slue

4. get worseExamples: "My grades are slipping"Synonyms: drop away, drop off, fall away, slip

5. move smoothly and easilyExamples: "the bolt slipped into place"; "water slipped from the polished marble"Synonyms: slip

6. to make a mistake or be incorrectSynonyms: err, mistake, slip