This study explores two determiner phrases (DPs) facets that have been formerly examined in Spanish/English code-switching, viz. the openness of semantic domains to non-native nouns and gender assignment in monolingual versus code-switched speech. The quantitative analysis of oral naturalistic data from 62 native speakers of Northern Belizean Spanish disclosed both resemblances and marked discrepancies vis-à-vis earlier findings for varieties of Spanish/English code-switching in the U.S. Hispanophone context. Semantic domains that fostered non-native nouns in Spanish/English DPs enclosed academia, technology, work/money-related terms, abstract concepts, linguistics/language terms and everyday items. In relation to gender assignation, assignment patterns in monolingual DPs were canonical whilst a crushing predilection for the masculine default gender was vouched in mixed DPs. Biological gender doesn't appear deterministic in switched DPs. The analysis points out the significant role played by code-switching type in contact outcomes in bi/multilingual communities, as speech patterns mirror the status and ingenuity that code-switching is procured at a societal and idiolectal level.