The present work investigates the effects of social constraints on word order variation in particle placement in Ontario English, Canada. While previous research has documented numerous linguistic factors conditioning the choice of variant, social correlates have so far remained unexplored. To address this gap, we analyze 6,047 variable phrasal verbs from the vernacular speech of six communities in Ontario. These data were coded for length of the direct object, verb semantics, community, and the individual's education, gender, age, and occupation. Our analyses confirm previous findings that variation in particle placement is predominantly determined by direct object length. However, we also expose significant social and geographic factors, and importantly an effect of age, with younger speakers using the joined variant more than older speakers. Further analysis confirms that the latter effect is consistent across communities, indicating a change in progress, possibly due to ongoing grammaticalization of particles in the verb phrase.