jam bun; jam-filled bread roll
A soft bread roll filled with jam, commonly found in Japanese bakeries. Wasei-eigo from English 'jam' + Portuguese-derived 'pan'.
wasei-eigo (Japanese-coined English), from jam pan (bread)
I ate a jam bun for breakfast.
あのパン屋のジャムパンは、中にいちごジャムがたっぷり入っている。
The jam buns from that bakery are filled with plenty of strawberry jam.
Variant with interpunct; rarely used in practice.
Wasei-eigo (Japanese-made English) combining English 'jam' and Portuguese-derived 'pan' (bread).