The first pig (who was in the straw house) was not in, while the second pig (who was in the stick house) was "shaving the hairs on his chinny chin-chin".
ðə fˈɜːst pˈɪɡ hˌuː wʌz ɪnðə stɹˈɔː hˈaʊs wʌz nˌɑːt ˈɪn, wˌaɪl ðə sˈɛkənd pˈɪɡ hˌuː wʌz ɪnðə stˈɪk hˈaʊs wʌz "ʃˈeɪvɪŋ ðə hˈɛɹz ˌɔn hɪz tʃˈɪni tʃˈɪntʃˈɪn".