troublesomepair
nounUK /ˈtrʌbəlsəm peə/
US /ˈtrʌbəlsəm pɛr/
Two things or people that cause problems when they are together.
The two broken bikes were a troublesomepair that kept getting in the way.
OTHER MEANINGS
2. Two items that are hard to handle or fix together.
The tangled cables made a troublesomepair on the desk.
3. Two people who often cause mischief as a team.
The twins were a troublesomepair at the park.
4. A set of two things that create extra work.
Those leaky buckets were a troublesomepair to carry.