意味のない変数名たち

a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z, aa, bb, cc, dd, ee, ff, xx, yy, zz, aaa, bbb, ccc, tmp, temp, t, val, value, v, var, vars, data, datum, obj, object, item, items, elem, element, node, nodes, key, keys, value1, value2, val1, val2, result, res, retval, ret, output, out, input, in, arg, args, param, params, p, q, r, foo, bar, baz, qux, quux, corge, grault, garply, waldo, fred, plugh, xyzzy, thud, fum, wibble, wobble, wob, spam, ham, eggs, bacon, cheese, alpha, beta, gamma, delta, epsilon, omega, lambda, sigma, theta, phi, psi, mu, nu, xi, rho, tau, eta, zeta, pi, first, second, third, fourth, one, two, three, left, right, top, bottom, current, currentNode, next, prev, previous, parent, child, root, leaf, head, tail, start, end, begin, finish, index, idx, id, id1, id2, pos, position, offset, count, cnt, num, number, size, length, len, cap, capacity, total, sum, avg, mean, min, max, low, high, mid, pivot, flag, ok, done, found, exists, status, state, mode, type, kind, tag, token, tokens, buf, buffer, line, lines, col, row, rows, cols, map, dict, table, hash, set, list, array, arr, vec, vector, matrix, mat, graph, tree, heap, stack, queue, deque, pair, tuple, record, entry, entries, field, fields, prop, props, ctx, context, env, config, cfg, option, options, meta, info, payload, body, message, msg, text, str, string, chr, char, bytes, byte, stream, reader, writer, file, path, url, uri, host, port, client, server, req, request, resp, response, session, cache, db, conn, socket, handler, callback, cb, fn, func, function, proc, process, task, job, worker, thread, promise, future, event, ev, signal, command, cmd, expr, expression, ast, ir, op, opcode, operand, lhs, rhs, src, dst, target, source, ref, reference, ptr, pointer, self, this, cls, klass, instance, impl, impl1, impl2, generic, placeholder, dummy, sample, example, test, mock, stub, fake, noop, unknown, misc, extra, aux, aux1, aux2, aux3, x1, x2, x3, y1, y2, y3, z1, z2, z3, i0, i1, i2, j0, j1, j2, k0, k1, k2, n1, n2, m1, m2, p1, p2, q1, q2, c1, c2, tmp1, tmp2, tmp3, temp1, temp2, temp3, foo1, foo2, bar1, bar2, baz1, baz2, arg1, arg2, arg3, param1, param2, param3, data1, data2, obj1, obj2, item1, item2, node1, node2, valueA, valueB, keyA, keyB, lhs1, rhs1, input1, output1