The spelling of the word "chuckl" is incorrect as it is missing a letter. The correct spelling is "chuckle," which is pronounced \ˈchə-kəl\ using IPA phonetic transcription. The "ch" sound is produced from the back of the throat, while the "u" sound is pronounced like "uh." The "k" sound is produced by closing the back of the mouth and pushing air out through the throat. Finally, the "l" sound is produced by touching the tongue to the roof of the mouth.