If you really want to insult someone, it can be coupled with adjectives such as grinig gubbe (grumpy old man) or ful gubbe (literally "ugly man" but usually used to mean "dirty old man" or "letch"). Gubbe is also a Swedish dialect word to refer to a small lump, and jord means "earth" in the sense of soil, so a strawberry is quite simply "a small lump that grows in the earth". Most linguists believe that this dialect word was the origin of en gubbe meaning man, probably first used to refer to small children.