"Whomping up" is a phrase that means to create or produce quickly and energetically. The word "whomping" is spelled with a silent "p" and pronounced as /ˈwɒmpɪŋ/ in IPA phonetic transcription. The first syllable is stressed, and the "o" is pronounced as in "hot." The "mp" sounds like the "m" in "man," but with a slight puff of air. The "ing" is pronounced as in "ring." Together, these sounds create a unique and playful word that perfectly captures the sense of excitement and energy that "whomping up" implies.