علشان is not an original arabic word, it is not used in written language It is used in Egyptian accent meaning because or because of لأن، بسبب كده is the same, it means هكذا البتار is an original arabic word (fusha) It is said about something tough and strong Mainly we use it about swords so yousay سيف بتار meaning sharp sword فعلا means really, in arabic it means حقيقة عيوب is the plural of عيب it means demerit