How Do You Spell HEADSED UP?
Pronunciation: [hˈɛdzd ˈʌp] (IPA) 
The word "headsed up" may seem like a strange spelling, but it actually makes sense when broken down phonetically. The first syllable "head" is, of course, pronounced as in "head" [hɛd]. The second syllable "sed" is pronounced like "said" [sɛd], and the final syllable "up" is pronounced as in "cup" [ʌp]. So, altogether, "headsed up" is pronounced something like [hɛd.sɛd.ʌp]. While it may not be a commonly used spelling, it does follow the rules of English phonetics.
