Dyke is a slur (offensive word) used towards lesbians.
And the dike is the raised part, it's the thing not flooded in the photo. A dike is used to prevent flooding, so a flooded dike would require a LOT more water.
I always keep my phone in my front pocket and have never had a problem biking. Are you actively buying pants with tiny pockets? I only buy second hand clothes and have a few "female pants" with pockets that don't fully fit huge phones and even with them it's not a problem.
I'm a swede with fully swedish parents, and I have always lived here, but I've always sucked at Swedish, both spelling and vocabulary.
But I'm way better at English, I often use English words because I can't remember or simply don't know the Swedish equivalent, and sometimes I just give up and fully use English for whatever I'm trying to explain. I wouldn't say I'm great at grammar overall, but I'm above average based on how bad most people are.
Avocadon't*