parejita

Diminutive of "pareja" ('couple' in Spanish), it's a slang term sometimes used in schools or universities, usually referring to a couple for one of both reasons:

1. It can refer to a couple that's annoying, boring or controversial, usually recognizing it for being a toxic relationship or just unstable in anyway.

2. It refers to a couple that is not what has been said in the definition before, in any case, just being a stable relationship.

In most cases a "parejita" can change from definition 2 to definition 1 over time.

- 'Esa parejita de allá es muy molesta, oí que el chico se fue con Laura, ¿por qué siguen juntos si tanto van de swingers?'
- 'Why am I the only person you talk in Spanish to?'