Shakebag isn't a commonly-used word and isn't found in most English dictionaries. However, it can be spelled as /ˈʃeɪkbæɡ/ using IPA phonetic transcription. The "sh" sound is represented by the letter combination "sh," while the "a" sound is represented by the letter "a." The "k" sound is represented by the letter "k," and the "b" sound by the letter "b." The final "a" sound is represented again by the letter "a," and the "g" sound is represented by the letter "g." Putting it all together, /ˈʃeɪkbæɡ/ becomes "shakebag."