The word "pissplay" is spelled with two s's because the sound /s/ is repeated twice in the word. The first syllable is spelled with the vowel sound /ɪ/, and the second syllable is spelled with the vowel sound /eɪ/. The IPA phonetic transcription of "pissplay" is /ˈpɪspleɪ/. It is important to note that this is a vulgar term and should not be used in polite company. It is always important to be mindful of the words we use and the impact they may have on others.