At the age of 18, the Scottish-born designer, illustrator and self-proclaimed "club kid" moved from Glasgow to London to undertake a BA in Fashion Design at Central Saint Martins. During the placement year of his course, Jeffrey worked in retail and then as a design assistant at Jack Wills to save enough money for a three-month internship in the haute couture ateliers of Christian Dior in Paris.

Back in London, Jeffrey and his tribe of artist, musician and photographer friends launched the Loverboy club night at cult East London venue VF (Vogue Fabrics) Dalston. It fast became a household name among club goers, and Jeffrey used the event to help fund his MA in fashion at Central Saint Martins where he was taught by the late Louise Wilson .

His work attracted the attention of Lulu Kennedy , and the designer was chosen to show as part of Topman and Fashion East's MAN initiative at London Fashion Week for Spring/Summer 2016. His relationship with MAN has continued, with Jeffrey showing his collections as part of the collective, and hosting the extravagant Loverboy after-parties that follow.

As Senior Contributing Fashion Editor for Love magazine, Jeffrey has styled the front-of-book pages of several issues. Other commissions have included the Creative Direction of a Vivienne Westwood archive story for AnOther Man and a Maison Margiela retrospective shoot, in collaboration with John Galliano , for Love.