"Alahajohn Jokes (1) - (for Sri Lankans)" joke

Mr. Alahajohn, a prominent teacher and master-in-charge of first-XV rugby at a leading Kandy school, goes underwear shopping. Stepping into a store on Colombo Street, he inquires about good brands. The sales assistant says "Mahattaya, api gawa Apple thiyenawa." Mr. Alahajohn thinks for a moment and asked, "hmm... whena monwadha thiyena flavors?"