비격식적 표현으로서, '뚱뚱한 사람' 또는 '체구가 큰 사람'

I'm sorry, but it seems there is a misunderstanding. The text you provided appears to be in Korean, not Spanish. It translates to something like "an informal expression for 'fat person' or 'big person'." If you meant to ask for a Spanish word that corresponds to this description, please provide the word in Spanish, and I can help with its definitions. tuntematon