The spelling of the word "gumper" is unusual and may be confusing for those unfamiliar with it. To better understand its spelling, let's break it down using the International Phonetic Alphabet (IPA). The first sound is /ɡ/, which represents the hard "g" sound. The "um" in "gumper" is pronounced with a schwa sound, indicated by /ə/. Finally, the "per" sound is represented as /pər/. Hence, the IPA transcription for "gumper" is /ɡʌmpər/.