Everyone calls him Pippin; his real name is Peregrine.
Tips
culture
佩格林 transliterates the English name Peregrine. The most prominent bearer in Chinese-language pop culture is 佩格林·图克 (Peregrine Took), nicknamed 皮聘 (Pippin), one of the four hobbits in J.R.R. Tolkien's 《魔戒》 (The Lord of the Rings).
usage
Sound mapping: 佩 (pèi) for "Per-", 格 (gé) for "-gri-", 林 (lín) for "-ne". The characters are chosen for phonetics, not meaning.