She didn't want to 'give full vent to' her feelings. [=let her feelings out completely]
She 'vented' her frustrations by kicking the car.
She needed to find a 'vent' for her frustration.
(..) who know what they're doing. Before you do that, Chris, I wanna tell you about Officer Bennett. Few years back, some wacko, he abducted a kid... ...threw him down a mine vent up there in Silent Hill. Cybil Bennett, she found that boy. She spent three days holding onto him... ...keeping him alive (..)2006 Silent Hill