Definition of tumps:
(v) :
(transitive, Southern US) to bump, knock (usually used with "over", possibly a combination of "tip" and "dump")
(v) :
(intransitive, Southern US) To fall over.
(v) :
(transitive) To form a mass of earth or a hillock around.
(v) :
(US, dialect) To draw or drag, as a deer or other animal after it has been killed.
(n) :
(British, rare) A mound or hillock.
(n) :
(uncommon) A tumpline.