Jerry-rigged vs. Jury-rigged vs. Jerry-built
Wrong: That jerry-rigged contraption will never hold together.
Right: That jury-rigged contraption will never hold together.
The expressions jury-rigged and jerry-built both refer to something that is hastily and perhaps poorly assembled. Jerry-rigged appears to be a jerry-built mixture of the two that shouldn’t be used.
Crossover vs. Cross over
Wrong: His spirit is waiting to crossover to the other side.
Right: His spirit is waiting to cross over to the other side.
A crossover (noun) is something that spans two things (landmasses, book genres, types of motor vehicles, etc.). On the other hand, to cross over (verb phrase) is to change successfully from one thing or state of being to another (for example, to die, change political parties, or mutate).
I haven't run out of terms yet. Come back soon for more.