ぽち

ぽち or ポチ • (pochi) 

1. a small spot or protrusion; speck, point, dot

   Synonyms: ぽっち (potchi), ぽつ (potsu), ちょぼ (chobo)

2. (dialectal, Kansai) gratuity, tip

   Synonyms: 心付け (kokorozuke), 祝儀 (shūgi), チップ (chippu)

• ぽち袋(ぶくろ) (pochi bukuro, “money envelope”)
• 胸(むね)ポチ (munepochi)

ぽち • (-pochi) 

1. Synonym of ぽっち (-potchi)

• ぽちぽち (pochipochi)
• ぽちっと (pochitto)
• ぼちぼち (bochibochi)
• ぽつ (potsu)
• ぽつぽつ (potsupotsu)
• ぽつり (potsuri)
• ぽっち (potchi)
• ぽっちり (potchiri)

There are various theories about the derivation:

• English spotty
• English pooch
• French petit (“small, little, petty”)

ぽち or ポチ • (Pochi) 

1. A given name for a dog.